NACK: [Xenial SRU][PATCH 1/2] UBUNTU: SAUCE: (no-up) Support IXXAT USB SocketCAN device
Kleber Souza
kleber.souza at canonical.com
Tue Jun 5 17:29:01 UTC 2018
Hi Shrirang,
On 05/31/18 22:47, Shrirang Bagul wrote:
> BugLink: http://bugs.launchpad.net/bugs/1774563
>
> This driver from IXXAT adds support for SocketCAN over USB.
> (https://www.ixxat.com)
>
> Signed-off-by: Shrirang Bagul <shrirang.bagul at canonical.com>
> ---
> ubuntu/Kconfig | 3 +-
> ubuntu/Makefile | 5 +-
> ubuntu/ixxat/Kconfig | 8 +
> ubuntu/ixxat/Makefile | 4 +
> ubuntu/ixxat/ixx_usb_core.c | 923 +++++++++++++++++++
> ubuntu/ixxat/ixx_usb_core.h | 289 ++++++
> ubuntu/ixxat/ixx_usb_fd.c | 1673 +++++++++++++++++++++++++++++++++++
> ubuntu/ixxat/ixx_usb_v2.c | 1450 ++++++++++++++++++++++++++++++
> 8 files changed, 4353 insertions(+), 2 deletions(-)
> create mode 100644 ubuntu/ixxat/Kconfig
> create mode 100644 ubuntu/ixxat/Makefile
> create mode 100644 ubuntu/ixxat/ixx_usb_core.c
> create mode 100644 ubuntu/ixxat/ixx_usb_core.h
> create mode 100644 ubuntu/ixxat/ixx_usb_fd.c
> create mode 100644 ubuntu/ixxat/ixx_usb_v2.c
>
> diff --git a/ubuntu/Kconfig b/ubuntu/Kconfig
> index bc2fb5530593..a3ad3d87ce53 100644
> --- a/ubuntu/Kconfig
> +++ b/ubuntu/Kconfig
> @@ -30,10 +30,11 @@ source "ubuntu/opennsl/Kconfig"
> ##
> ##
> ##
> +source "ubuntu/bnxt/Kconfig"
> ##
> ##
> ##
> -source "ubuntu/bnxt/Kconfig"
> +source "ubuntu/ixxat/Kconfig"
> ##
> ##
> ##
Please add the 3 lines with "##" above the new entry so the patch
doesn't need to touch the exiting entries and avoid merge conflicts by
that. E.g.:
--- a/ubuntu/Kconfig
+++ b/ubuntu/Kconfig
@@ -37,6 +37,10 @@ source "ubuntu/bnxt/Kconfig"
##
##
##
+source "ubuntu/ixxat/Kconfig
+##
+##
+##
##
##
##
> diff --git a/ubuntu/Makefile b/ubuntu/Makefile
> index 85e1c900735c..62dd1e1b7b46 100644
> --- a/ubuntu/Makefile
> +++ b/ubuntu/Makefile
> @@ -44,11 +44,14 @@ obj-$(CONFIG_OPENNSL) += opennsl/
> ##
> ##
> ##
> -##
> obj-$(CONFIG_BNXT_BPO) += bnxt/
> ##
> ##
> ##
> +obj-$(CONFIG_CAN_HMS_USB) += ixxat/
> +##
> +##
> +##
> ##
> ##
> ##
Same here.
Thanks,
Kleber
> diff --git a/ubuntu/ixxat/Kconfig b/ubuntu/ixxat/Kconfig
> new file mode 100644
> index 000000000000..63ff0d054d9e
> --- /dev/null
> +++ b/ubuntu/ixxat/Kconfig
> @@ -0,0 +1,8 @@
> +config CAN_HMS_USB
> + tristate "HMS USB SocketCAN"
> + depends on X86 || X86_64
> + depends on USB && CAN_DEV
> + ---help---
> + This driver is from IXXAT and supports SocketCAN over USB.
> + (https://www.ixxat.com)
> +
> diff --git a/ubuntu/ixxat/Makefile b/ubuntu/ixxat/Makefile
> new file mode 100644
> index 000000000000..d4ee67ebdd24
> --- /dev/null
> +++ b/ubuntu/ixxat/Makefile
> @@ -0,0 +1,4 @@
> +mod-name += ixx_usb
> +obj-m += ixx_usb.o
> +ixx_usb-objs := ixx_usb_v2.o ixx_usb_fd.o ixx_usb_core.o
> +
> diff --git a/ubuntu/ixxat/ixx_usb_core.c b/ubuntu/ixxat/ixx_usb_core.c
> new file mode 100644
> index 000000000000..d258b6e46453
> --- /dev/null
> +++ b/ubuntu/ixxat/ixx_usb_core.c
> @@ -0,0 +1,923 @@
> +/*
> + * CAN driver for IXXAT USB-to-CAN V2 adapters
> + *
> + * Copyright (C) 2003-2014 Michael Hengler IXXAT Automation GmbH
> + *
> + * Based on code originally by pcan_usb_core
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published
> + * by the Free Software Foundation; version 2 of the License.
> + *
> + * This program is distributed in the hope that it will be useful, but
> + * WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * General Public License for more details.
> + */
> +#include <linux/init.h>
> +#include <linux/signal.h>
> +#include <linux/slab.h>
> +#include <linux/module.h>
> +#include <linux/netdevice.h>
> +#include <linux/usb.h>
> +#include <linux/errno.h>
> +#include <linux/skbuff.h>
> +#include <linux/types.h>
> +#include <linux/can.h>
> +#include <linux/can/dev.h>
> +#include <linux/can/error.h>
> +#include <asm-generic/errno.h>
> +
> +#include "ixx_usb_core.h"
> +
> +MODULE_AUTHOR("Michael Hengler <mhengler at ixxat.de>");
> +MODULE_DESCRIPTION("CAN driver for IXXAT USB-to-CAN V2 adapters");
> +MODULE_LICENSE("GPL v2");
> +
> +#define IXXAT_USB_DRIVER_NAME "ixx_usb"
> +
> +#define IXXAT_USB_BUS_CAN 1 // CAN
> +#define IXXAT_USB_BUS_TYPE(BusCtrl) (u8) ( ((BusCtrl) >> 8) & 0x00FF )
> +#define IXXAT_USB_VENDOR_ID 0x08d8
> +
> +#define IXXAT_USB_STATE_CONNECTED 0x00000001
> +#define IXXAT_USB_STATE_STARTED 0x00000002
> +
> +
> +/* Table of devices that work with this driver */
> +static struct usb_device_id ixxat_usb_table[] = {
> + {USB_DEVICE(IXXAT_USB_VENDOR_ID, USB_TO_CAN_V2_COMPACT_PRODUCT_ID)},
> + {USB_DEVICE(IXXAT_USB_VENDOR_ID, USB_TO_CAN_V2_EMBEDDED_PRODUCT_ID)},
> + {USB_DEVICE(IXXAT_USB_VENDOR_ID, USB_TO_CAN_V2_PROFESSIONAL_PRODUCT_ID)},
> + {USB_DEVICE(IXXAT_USB_VENDOR_ID, USB_TO_CAN_V2_AUTOMOTIVE_PRODUCT_ID)},
> + {USB_DEVICE(IXXAT_USB_VENDOR_ID, USB_TO_LIN_V2_PRODUCT_ID)},
> + {USB_DEVICE(IXXAT_USB_VENDOR_ID, USB_TO_KLINE_V2_PRODUCT_ID)},
> +#ifdef CANFD_CAPABLE
> + {USB_DEVICE(IXXAT_USB_VENDOR_ID, USB_TO_CAN_FD_AUTOMOTIVE_PRODUCT_ID)},
> + {USB_DEVICE(IXXAT_USB_VENDOR_ID, USB_TO_CAN_FD_COMPACT_PRODUCT_ID)},
> + {USB_DEVICE(IXXAT_USB_VENDOR_ID, USB_TO_CAN_FD_PROFESSIONAL_PRODUCT_ID)},
> + {USB_DEVICE(IXXAT_USB_VENDOR_ID, USB_TO_CAN_FD_PCIE_MINI_PRODUCT_ID)},
> + {USB_DEVICE(IXXAT_USB_VENDOR_ID, USB_TO_CAR_ID)},
> + {USB_DEVICE(IXXAT_USB_VENDOR_ID, DELL_EDGE_GW3002_PRODUCT_ID)},
> +#endif
> + {} /* Terminating entry */
> +};
> +
> +MODULE_DEVICE_TABLE(usb, ixxat_usb_table);
> +
> +/* List of supported IXX-USB adapters (NULL terminated list) */
> +static struct ixx_usb_adapter *ixx_usb_adapters_list[] = {
> + &usb_to_can_v2_compact,
> + &usb_to_can_v2_automotive,
> + &usb_to_can_v2_embedded,
> + &usb_to_can_v2_professional,
> + &usb_to_can_v2_low_speed,
> + &usb_to_can_v2_extended,
> +#ifdef CANFD_CAPABLE
> + &usb_to_can_fd_automotive,
> + &usb_to_can_fd_compact,
> + &usb_to_can_fd_professional,
> + &usb_to_can_fd_pcie_mini,
> + &usb_to_car,
> + &dell_edge_gw3002,
> +#endif
> + NULL,
> +};
> +
> +/*
> + * dump memory
> + */
> +#define DUMP_WIDTH 16
> +void ixxat_dump_mem(char *prompt, void *p, int l)
> +{
> + pr_info("%s dumping %s (%d bytes):\n",
> + IXXAT_USB_DRIVER_NAME, prompt ? prompt : "memory", l);
> + print_hex_dump(KERN_INFO, IXXAT_USB_DRIVER_NAME " ", DUMP_PREFIX_NONE,
> + DUMP_WIDTH, 1, p, l, false);
> +}
> +
> +static void ixxat_usb_add_us(struct timeval *tv, u64 delta_us)
> +{
> + /* number of s. to add to final time */
> + u32 delta_s = div_u64(delta_us, 1000000);
> +
> + delta_us -= delta_s * 1000000;
> +
> + tv->tv_usec += delta_us;
> + if (tv->tv_usec >= 1000000) {
> + tv->tv_usec -= 1000000;
> + delta_s++;
> + }
> + tv->tv_sec += delta_s;
> +}
> +
> +void ixxat_usb_get_ts_tv(struct ixx_usb_device *dev, u32 ts, ktime_t *k_time)
> +{
> + struct timeval tv = dev->time_ref.tv_host_0;
> +
> + if (ts < dev->time_ref.ts_dev_last) {
> + ixxat_usb_update_ts_now(dev, ts);
> + }
> +
> + dev->time_ref.ts_dev_last = ts;
> + ixxat_usb_add_us(&tv, ts - dev->time_ref.ts_dev_0);
> +
> + if(k_time)
> + *k_time = timeval_to_ktime(tv);
> +}
> +
> +void ixxat_usb_update_ts_now(struct ixx_usb_device *dev, u32 hw_time_base)
> +{
> + u64 timebase;
> +
> + timebase = (u64)0x00000000FFFFFFFF - (u64)dev->time_ref.ts_dev_0 + (u64)hw_time_base;
> +
> + ixxat_usb_add_us(&dev->time_ref.tv_host_0, timebase);
> +
> + dev->time_ref.ts_dev_0 = hw_time_base;
> +}
> +
> +void ixxat_usb_set_ts_now(struct ixx_usb_device *dev, u32 hw_time_base)
> +{
> + dev->time_ref.ts_dev_0 = hw_time_base;
> + do_gettimeofday(&dev->time_ref.tv_host_0);
> + dev->time_ref.ts_dev_last = hw_time_base;
> +}
> +
> +/*
> + * callback for bulk Rx urb
> + */
> +static void ixxat_usb_read_bulk_callback(struct urb *urb)
> +{
> + struct ixx_usb_device *dev = urb->context;
> + struct net_device *netdev;
> + int err;
> +
> + netdev = dev->netdev;
> +
> + if (!netif_device_present(netdev))
> + return;
> +
> + /* check reception status */
> + switch (urb->status) {
> + case 0:
> + /* success */
> + break;
> +
> + case -EILSEQ:
> + case -ENOENT:
> + case -ECONNRESET:
> + case -ESHUTDOWN:
> + return;
> +
> + default:
> + if (net_ratelimit())
> + netdev_err(netdev, "Rx urb aborted (%d)\n",
> + urb->status);
> + goto resubmit_urb;
> + }
> +
> + /* protect from any incoming empty msgs */
> + if ((urb->actual_length > 0) && (dev->adapter->dev_decode_buf)) {
> + /* handle these kinds of msgs only if _start callback called */
> + if (dev->state & IXXAT_USB_STATE_STARTED)
> + err = dev->adapter->dev_decode_buf(dev, urb);
> + }
> +
> +resubmit_urb: usb_fill_bulk_urb(urb, dev->udev,
> + usb_rcvbulkpipe(dev->udev, dev->ep_msg_in),
> + urb->transfer_buffer, dev->adapter->rx_buffer_size,
> + ixxat_usb_read_bulk_callback, dev);
> +
> + usb_anchor_urb(urb, &dev->rx_submitted);
> + err = usb_submit_urb(urb, GFP_ATOMIC);
> + if (!err)
> + return;
> +
> + usb_unanchor_urb(urb);
> +
> + if (err == -ENODEV)
> + netif_device_detach(netdev);
> + else
> + netdev_err(netdev, "failed resubmitting read bulk urb: %d\n",
> + err);
> +}
> +
> +/*
> + * callback for bulk Tx urb
> + */
> +static void ixxat_usb_write_bulk_callback(struct urb *urb)
> +{
> + struct ixx_tx_urb_context *context = urb->context;
> + struct ixx_usb_device *dev;
> + struct net_device *netdev;
> +
> + BUG_ON(!context);
> +
> + dev = context->dev;
> + netdev = dev->netdev;
> +
> + atomic_dec(&dev->active_tx_urbs);
> +
> + if (!netif_device_present(netdev))
> + return;
> +
> + /* check tx status */
> + switch (urb->status) {
> + case 0:
> + /* transmission complete */
> + netdev->stats.tx_packets += context->count;
> + netdev->stats.tx_bytes += context->dlc;
> +
> + /* prevent tx timeout */
> +#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0)
> + netif_trans_update(netdev);
> +#else
> + netdev->trans_start = jiffies;
> +#endif
> + break;
> +
> +
> + case -EPROTO:
> + case -ENOENT:
> + case -ECONNRESET:
> + case -ESHUTDOWN:
> + break;
> + default:
> + if (net_ratelimit())
> + netdev_err(netdev, "Tx urb aborted (%d)\n",
> + urb->status);
> + break;
> + }
> +
> + /* should always release echo skb and corresponding context */
> + can_get_echo_skb(netdev, context->echo_index);
> + context->echo_index = IXXAT_USB_MAX_TX_URBS;
> +
> + /* do wakeup tx queue in case of success only */
> + if (!urb->status)
> + netif_wake_queue(netdev);
> +}
> +
> +/*
> + * called by netdev to send one skb on the CAN interface.
> + */
> +static netdev_tx_t ixxat_usb_ndo_start_xmit(struct sk_buff *skb,
> + struct net_device *netdev)
> +{
> + struct ixx_usb_device *dev = netdev_priv(netdev);
> + struct ixx_tx_urb_context *context = NULL;
> + struct net_device_stats *stats = &netdev->stats;
> + struct canfd_frame *cf = (struct canfd_frame *) skb->data;
> + struct urb *urb;
> + u8 *obuf;
> + int i, err;
> + size_t size = dev->adapter->tx_buffer_size;
> +
> + if (can_dropped_invalid_skb(netdev, skb))
> + return NETDEV_TX_OK;
> +
> + for (i = 0; i < IXXAT_USB_MAX_TX_URBS; i++) {
> + if (dev->tx_contexts[i].echo_index == IXXAT_USB_MAX_TX_URBS) {
> + context = dev->tx_contexts + i;
> + break;
> + }
> + }
> +
> + if (!context) {
> + /* should not occur except during restart */
> + return NETDEV_TX_BUSY;
> + }
> +
> + urb = context->urb;
> + obuf = urb->transfer_buffer;
> +
> + err = dev->adapter->dev_encode_msg(dev, skb, obuf, &size);
> +
> + context->echo_index = i;
> + context->dlc = cf->len;
> + context->count = 1;
> +
> + urb->transfer_buffer_length = size;
> +
> + if (err) {
> + if (net_ratelimit())
> + netdev_err(netdev, "packet dropped\n");
> + dev_kfree_skb(skb);
> + stats->tx_dropped++;
> + return NETDEV_TX_OK;
> + }
> +
> + usb_anchor_urb(urb, &dev->tx_submitted);
> +
> + can_put_echo_skb(skb, netdev, context->echo_index);
> +
> + atomic_inc(&dev->active_tx_urbs);
> +
> + err = usb_submit_urb(urb, GFP_ATOMIC);
> + if (err) {
> + can_free_echo_skb(netdev, context->echo_index);
> +
> + usb_unanchor_urb(urb);
> +
> + /* this context is not used in fact */
> + context->echo_index = IXXAT_USB_MAX_TX_URBS;
> +
> + atomic_dec(&dev->active_tx_urbs);
> +
> + switch (err) {
> + case -ENODEV:
> + netif_device_detach(netdev);
> + break;
> + case -ENOENT:
> + /* cable unplugged */
> + stats->tx_dropped++;
> + break;
> + default:
> + stats->tx_dropped++;
> + netdev_warn(netdev, "tx urb submitting failed err=%d\n",
> + err);
> + }
> + } else {
> +#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0)
> + netif_trans_update(netdev);
> +#else
> + netdev->trans_start = jiffies;
> +#endif
> +
> + /* slow down tx path */
> + if (atomic_read(&dev->active_tx_urbs) >= IXXAT_USB_MAX_TX_URBS)
> + netif_stop_queue(netdev);
> + }
> +
> + return NETDEV_TX_OK;
> +}
> +
> +/*
> + * start the CAN interface.
> + * Rx and Tx urbs are allocated here. Rx urbs are submitted here.
> + */
> +static int ixxat_usb_start(struct ixx_usb_device *dev)
> +{
> + struct net_device *netdev = dev->netdev;
> + int err, i;
> +
> + for (i = 0; i < IXXAT_USB_MAX_RX_URBS; i++) {
> + struct urb *urb;
> + u8 *buf;
> +
> + /* create a URB, and a buffer for it, to receive usb messages */
> + urb = usb_alloc_urb(0, GFP_KERNEL);
> + if (!urb) {
> + netdev_err(netdev, "No memory left for URBs\n");
> + err = -ENOMEM;
> + break;
> + }
> +
> + buf = kmalloc(dev->adapter->rx_buffer_size, GFP_KERNEL);
> + if (!buf) {
> + usb_free_urb(urb);
> + err = -ENOMEM;
> + break;
> + }
> +
> + usb_fill_bulk_urb(urb, dev->udev,
> + usb_rcvbulkpipe(dev->udev, dev->ep_msg_in), buf,
> + dev->adapter->rx_buffer_size,
> + ixxat_usb_read_bulk_callback, dev);
> +
> + /* ask last usb_free_urb() to also kfree() transfer_buffer */
> + urb->transfer_flags |= URB_FREE_BUFFER;
> + usb_anchor_urb(urb, &dev->rx_submitted);
> +
> + err = usb_submit_urb(urb, GFP_KERNEL);
> + if (err) {
> + if (err == -ENODEV)
> + netif_device_detach(dev->netdev);
> +
> + usb_unanchor_urb(urb);
> + kfree(buf);
> + usb_free_urb(urb);
> + break;
> + }
> +
> + /* drop reference, USB core will take care of freeing it */
> + usb_free_urb(urb);
> + }
> +
> + /* did we submit any URBs? Warn if we was not able to submit all urbs */
> + if (i < IXXAT_USB_MAX_RX_URBS) {
> + if (i == 0) {
> + netdev_err(netdev, "couldn't setup any rx URB\n");
> + return err;
> + }
> +
> + netdev_warn(netdev, "rx performance may be slow\n");
> + }
> +
> + /* pre-alloc tx buffers and corresponding urbs */
> + for (i = 0; i < IXXAT_USB_MAX_TX_URBS; i++) {
> + struct ixx_tx_urb_context *context;
> + struct urb *urb;
> + u8 *buf;
> +
> + /* create a URB and a buffer for it, to transmit usb messages */
> + urb = usb_alloc_urb(0, GFP_KERNEL);
> + if (!urb) {
> + netdev_err(netdev, "No memory left for URBs\n");
> + err = -ENOMEM;
> + break;
> + }
> +
> + buf = kmalloc(dev->adapter->tx_buffer_size, GFP_KERNEL);
> + if (!buf) {
> + usb_free_urb(urb);
> + err = -ENOMEM;
> + break;
> + }
> +
> + context = dev->tx_contexts + i;
> + context->dev = dev;
> + context->urb = urb;
> +
> + usb_fill_bulk_urb(urb, dev->udev,
> + usb_sndbulkpipe(dev->udev, dev->ep_msg_out),
> + buf, dev->adapter->tx_buffer_size,
> + ixxat_usb_write_bulk_callback, context);
> +
> + /* ask last usb_free_urb() to also kfree() transfer_buffer */
> + urb->transfer_flags |= URB_FREE_BUFFER;
> + }
> +
> + /* warn if we were not able to allocate enough tx contexts */
> + if (i < IXXAT_USB_MAX_TX_URBS) {
> + if (i == 0) {
> + netdev_err(netdev, "couldn't setup any tx URB\n");
> + goto err_tx;
> + }
> +
> + netdev_warn(netdev, "tx performance may be slow\n");
> + }
> +
> + if (dev->adapter->dev_start) {
> + err = dev->adapter->dev_start(dev);
> + if (err)
> + goto err_adapter;
> + }
> +
> + dev->state |= IXXAT_USB_STATE_STARTED;
> +
> + dev->can.state = CAN_STATE_ERROR_ACTIVE;
> +
> + return 0;
> +
> +err_adapter: if (err == -ENODEV)
> + netif_device_detach(dev->netdev);
> +
> + netdev_warn(netdev, "couldn't submit control: %d\n", err);
> +
> + for (i = 0; i < IXXAT_USB_MAX_TX_URBS; i++) {
> + usb_free_urb(dev->tx_contexts[i].urb);
> + dev->tx_contexts[i].urb = NULL;
> + }
> +err_tx: usb_kill_anchored_urbs(&dev->rx_submitted);
> +
> + return err;
> +}
> +
> +/*
> + * called by netdev to open the corresponding CAN interface.
> + */
> +static int ixxat_usb_ndo_open(struct net_device *netdev)
> +{
> + struct ixx_usb_device *dev = netdev_priv(netdev);
> + int err;
> +
> + /* common open */
> + err = open_candev(netdev);
> + if (err)
> + return err;
> +
> + /* finally start device */
> + err = ixxat_usb_start(dev);
> + if (err) {
> + netdev_err(netdev, "couldn't start device: %d\n", err);
> + close_candev(netdev);
> + return err;
> + }
> +
> + netif_start_queue(netdev);
> +
> + return 0;
> +}
> +
> +/*
> + * unlink in-flight Rx and Tx urbs and free their memory.
> + */
> +static void ixxat_usb_unlink_all_urbs(struct ixx_usb_device *dev)
> +{
> + int i;
> +
> + /* free all Rx (submitted) urbs */
> + usb_kill_anchored_urbs(&dev->rx_submitted);
> +
> + /* free unsubmitted Tx urbs first */
> + for (i = 0; i < IXXAT_USB_MAX_TX_URBS; i++) {
> + struct urb *urb = dev->tx_contexts[i].urb;
> +
> + if (!urb
> + || dev->tx_contexts[i].echo_index
> + != IXXAT_USB_MAX_TX_URBS) {
> + /*
> + * this urb is already released or always submitted,
> + * let usb core free by itself
> + */
> + continue;
> + }
> +
> + usb_free_urb(urb);
> + dev->tx_contexts[i].urb = NULL;
> + }
> +
> + /* then free all submitted Tx urbs */
> + usb_kill_anchored_urbs(&dev->tx_submitted);
> + atomic_set(&dev->active_tx_urbs, 0);
> +}
> +
> +/*
> + * called by netdev to close the corresponding CAN interface.
> + */
> +static int ixxat_usb_ndo_stop(struct net_device *netdev)
> +{
> + struct ixx_usb_device *dev = netdev_priv(netdev);
> +
> + dev->state &= ~IXXAT_USB_STATE_STARTED;
> + netif_stop_queue(netdev);
> +
> + /* unlink all pending urbs and free used memory */
> + ixxat_usb_unlink_all_urbs(dev);
> +
> + if (dev->adapter->dev_stop)
> + dev->adapter->dev_stop(dev);
> +
> + close_candev(netdev);
> +
> + dev->can.state = CAN_STATE_STOPPED;
> +
> + return 0;
> +}
> +
> +/*
> + * handle end of waiting for the device to reset
> + */
> +void ixxat_usb_restart_complete(struct ixx_usb_device *dev)
> +{
> + /* finally MUST update can state */
> + dev->can.state = CAN_STATE_ERROR_ACTIVE;
> +
> + /* netdev queue can be awaken now */
> + netif_wake_queue(dev->netdev);
> +}
> +
> +void ixxat_usb_async_complete(struct urb *urb)
> +{
> + kfree(urb->transfer_buffer);
> + usb_free_urb(urb);
> +}
> +
> +/*
> + * candev callback used to change CAN mode.
> + * Warning: this is called from a timer context!
> + */
> +static int ixxat_usb_set_mode(struct net_device *netdev, enum can_mode mode)
> +{
> + struct ixx_usb_device *dev = netdev_priv(netdev);
> + int err = 0;
> +
> + switch (mode) {
> + case CAN_MODE_START:
> + dev->restart_flag = 1;
> + wake_up_interruptible(&dev->wait_queue);
> + break;
> + default:
> + return -EOPNOTSUPP;
> + }
> +
> + return err;
> +}
> +
> +/*
> + * candev callback used to set device bitrate.
> + */
> +static int ixxat_usb_set_bittiming(struct net_device *netdev)
> +{
> + struct ixx_usb_device* dev = (struct ixx_usb_device*) netdev_priv(
> + netdev);
> + struct can_bittiming *bt = &dev->can.bittiming;
> +
> + if (dev->adapter->dev_set_bittiming) {
> + int err = dev->adapter->dev_set_bittiming(dev, bt);
> +
> + if (err)
> + netdev_info(netdev, "couldn't set bitrate (err %d)\n",
> + err);
> + return err;
> + }
> +
> + return 0;
> +}
> +
> +/*
> + * candev callback used to set error counters.
> + */
> +static int ixxat_usb_get_berr_counter(const struct net_device *netdev,
> + struct can_berr_counter *bec)
> +{
> + struct ixx_usb_device* dev = (struct ixx_usb_device*) netdev_priv(
> + netdev);
> +
> + *bec = dev->bec;
> +
> + return 0;
> +}
> +
> +static const struct net_device_ops ixx_usb_netdev_ops = { .ndo_open =
> + ixxat_usb_ndo_open, .ndo_stop = ixxat_usb_ndo_stop,
> + .ndo_start_xmit = ixxat_usb_ndo_start_xmit,
> +#ifdef CANFD_CAPABLE
> + .ndo_change_mtu = can_change_mtu,
> +#endif
> +};
> +
> +/*
> + * create one device which is attached to CAN controller #ctrl_idx of the
> + * usb adapter.
> + */
> +static int ixxat_usb_create_dev(struct ixx_usb_adapter *ixx_usb_adapter,
> + struct usb_interface *intf, int ctrl_idx)
> +{
> + struct usb_device *usb_dev = interface_to_usbdev(intf);
> + int sizeof_candev = ixx_usb_adapter->sizeof_dev_private;
> + struct ixx_usb_device *dev;
> + struct net_device *netdev;
> + int i, err = 0, ep_off = 0;
> + u16 tmp16;
> +
> + if (sizeof_candev < sizeof(struct ixx_usb_device))
> + sizeof_candev = sizeof(struct ixx_usb_device);
> +
> + netdev = alloc_candev(sizeof_candev, IXXAT_USB_MAX_TX_URBS);
> + if (!netdev) {
> + dev_err(&intf->dev, "%s: couldn't alloc candev\n",
> + IXXAT_USB_DRIVER_NAME);
> + return -ENOMEM;
> + }
> +
> + dev = netdev_priv(netdev);
> +
> + dev->transmit_ptr = 0;
> + dev->transmit_dlc = 0;
> + dev->transmit_count = 0;
> +
> + dev->restart_flag = 0;
> + dev->restart_task = 0;
> + dev->must_quit = 0;
> + init_waitqueue_head(&dev->wait_queue);
> +
> + dev->ctrl_opened_count = 0;
> +
> + dev->udev = usb_dev;
> + dev->netdev = netdev;
> + dev->adapter = ixx_usb_adapter;
> + dev->ctrl_idx = ctrl_idx;
> + dev->state = IXXAT_USB_STATE_CONNECTED;
> +
> + ep_off = ixx_usb_adapter->has_bgi_ep ? 1 : 0;
> +
> + /* Add +1 because of the bgi endpoint */
> + dev->ep_msg_in = ixx_usb_adapter->ep_msg_in[ctrl_idx+ep_off];
> + dev->ep_msg_out = ixx_usb_adapter->ep_msg_out[ctrl_idx+ep_off];
> +
> + dev->can.clock = ixx_usb_adapter->clock;
> + dev->can.bittiming_const = &ixx_usb_adapter->bittiming_const;
> +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 3)
> + dev->can.data_bittiming_const = &ixx_usb_adapter->data_bittiming_const;
> +#endif
> +
> + dev->can.do_set_bittiming = ixxat_usb_set_bittiming;
> + dev->can.do_set_mode = ixxat_usb_set_mode;
> + dev->can.do_get_berr_counter = ixxat_usb_get_berr_counter;
> +
> + dev->can.ctrlmode_supported = ixx_usb_adapter->ctrlmode_supported;
> +
> + netdev->netdev_ops = &ixx_usb_netdev_ops;
> +
> + netdev->flags |= IFF_ECHO; /* we support local echo */
> +
> + init_usb_anchor(&dev->rx_submitted);
> +
> + init_usb_anchor(&dev->tx_submitted);
> + atomic_set(&dev->active_tx_urbs, 0);
> +
> + for (i = 0; i < IXXAT_USB_MAX_TX_URBS; i++)
> + dev->tx_contexts[i].echo_index = IXXAT_USB_MAX_TX_URBS;
> +
> + dev->prev_siblings = usb_get_intfdata(intf);
> + usb_set_intfdata(intf, dev);
> +
> + SET_NETDEV_DEV(netdev, &intf->dev);
> +
> + err = register_candev(netdev);
> + if (err) {
> + dev_err(&intf->dev, "couldn't register CAN device: %d\n", err);
> + goto lbl_set_intf_data;
> + }
> +
> + if (dev->prev_siblings)
> + (dev->prev_siblings)->next_siblings = dev;
> +
> + /* keep hw revision into the netdevice */
> + tmp16 = le16_to_cpu(usb_dev->descriptor.bcdDevice);
> + dev->device_rev = tmp16 >> 8;
> +
> + if (dev->adapter->dev_init) {
> + err = dev->adapter->dev_init(dev);
> + if (err)
> + goto lbl_set_intf_data;
> + }
> +
> + if (dev->adapter->intf_get_info)
> + dev->adapter->intf_get_info(dev,
> + &dev->dev_info);
> +
> + netdev_info(netdev, "attached to %s channel %u (device %s)\n",
> + dev->dev_info.device_name, ctrl_idx,
> + dev->dev_info.device_id);
> +
> + return 0;
> +
> +lbl_set_intf_data: usb_set_intfdata(intf, dev->prev_siblings);
> + free_candev(netdev);
> +
> + return err;
> +}
> +
> +/*
> + * called by the usb core when the device is unplugged from the system
> + */
> +static void ixxat_usb_disconnect(struct usb_interface *intf)
> +{
> + struct ixx_usb_device *dev;
> + struct ixx_usb_device *dev_prev_siblings;
> +
> + /* unregister as many netdev devices as siblings */
> + for (dev = usb_get_intfdata(intf); dev; dev = dev_prev_siblings) {
> + struct net_device *netdev = dev->netdev;
> + char name[IFNAMSIZ];
> +
> + dev_prev_siblings = dev->prev_siblings;
> + dev->state &= ~IXXAT_USB_STATE_CONNECTED;
> + strncpy(name, netdev->name, IFNAMSIZ);
> +
> + unregister_netdev(netdev);
> +
> + dev->next_siblings = NULL;
> + if (dev->adapter->dev_free)
> + dev->adapter->dev_free(dev);
> +
> + free_candev(netdev);
> + dev_dbg(&intf->dev, "%s removed\n", name);
> + }
> +
> + usb_set_intfdata(intf, NULL);
> +}
> +
> +/*
> + * probe function for new ixxat-usb devices
> + */
> +static int ixxat_usb_probe(struct usb_interface *intf,
> + const struct usb_device_id *id)
> +{
> + struct usb_device *usb_dev = interface_to_usbdev(intf);
> + struct ixx_usb_adapter *ixx_usb_adapter, **pp;
> + int i, err = -ENOMEM;
> + struct ixx_dev_caps dev_caps;
> +
> + usb_dev = interface_to_usbdev(intf);
> +
> + usb_reset_configuration(usb_dev);
> +
> + /* get corresponding IXX-USB adapter */
> + for (pp = ixx_usb_adapters_list; *pp; pp++)
> + if ((*pp)->device_id == le16_to_cpu(usb_dev->descriptor.idProduct))
> + break;
> +
> + ixx_usb_adapter = *pp;
> + if (!ixx_usb_adapter) {
> + /* should never come except device_id bad usage in this file */
> + pr_err("%s: didn't find device id. 0x%x in devices list\n",
> + IXXAT_USB_DRIVER_NAME, le16_to_cpu(usb_dev->descriptor.idProduct));
> + return -ENODEV;
> + }
> +
> + /* got corresponding adapter: check if it handles current interface */
> + if (ixx_usb_adapter->intf_probe) {
> + err = ixx_usb_adapter->intf_probe(intf);
> + if (err)
> + return err;
> + }
> +
> + if (ixx_usb_adapter->dev_power) {
> + err = ixx_usb_adapter->dev_power(usb_dev, IXXAT_USB_POWER_WAKEUP);
> + if (err)
> + return err;
> +
> + /* Give usb device some time to start its can controllers */
> + msleep(500);
> + }
> +
> + /* got corresponding adapter: check the available controllers */
> + if (ixx_usb_adapter->dev_get_dev_caps) {
> + err = ixx_usb_adapter->dev_get_dev_caps(usb_dev, &dev_caps);
> + if (err)
> + return err;
> +
> + for (i = 0; i < dev_caps.bus_ctrl_count; i++) {
> + if ( IXXAT_USB_BUS_CAN
> + == IXXAT_USB_BUS_TYPE(dev_caps.bus_ctrl_types[i]))
> + ixx_usb_adapter->ctrl_count++;
> + }
> +
> + for (i = 0; i < dev_caps.bus_ctrl_count; i++) {
> + if ( IXXAT_USB_BUS_CAN == IXXAT_USB_BUS_TYPE(dev_caps.bus_ctrl_types[i]))
> + err = ixxat_usb_create_dev(ixx_usb_adapter, intf, i);
> + if (err) {
> + /* deregister already created devices */
> + ixxat_usb_disconnect(intf);
> + break;
> + }
> + }
> + }
> +
> + return err;
> +}
> +
> +/* usb specific object needed to register this driver with the usb subsystem */
> +static struct usb_driver ixx_usb_driver = {
> + .name = IXXAT_USB_DRIVER_NAME,
> + .disconnect = ixxat_usb_disconnect,
> + .probe = ixxat_usb_probe,
> + .id_table = ixxat_usb_table,
> +};
> +
> +static int __init ixx_usb_init(void)
> +{
> + int err;
> +
> + /* register this driver with the USB subsystem */
> + err = usb_register(&ixx_usb_driver);
> + if (err)
> + pr_err("%s: usb_register failed (err %d)\n",
> + IXXAT_USB_DRIVER_NAME, err);
> +
> + return err;
> +}
> +
> +static int ixxat_usb_do_device_exit(struct device *d, void *arg)
> +{
> + struct usb_interface
> + *intf = (struct usb_interface*)to_usb_interface(d);
> + struct ixx_usb_device *dev;
> +
> + /* stop as many netdev devices as siblings */
> + for (dev = usb_get_intfdata(intf); dev; dev = dev->prev_siblings) {
> + struct net_device *netdev = dev->netdev;
> +
> + if (netif_device_present(netdev))
> + if (dev->adapter->dev_exit)
> + dev->adapter->dev_exit(dev);
> + }
> +
> + return 0;
> +}
> +
> +static void __exit ixx_usb_exit(void)
> +{
> + int err;
> +
> + /* last chance do send any synchronous commands here */
> + err = driver_for_each_device(&ixx_usb_driver.drvwrap.driver, NULL,
> + NULL, ixxat_usb_do_device_exit);
> + if (err)
> + pr_err("%s: failed to stop all can devices (err %d)\n",
> + IXXAT_USB_DRIVER_NAME, err);
> +
> + /* deregister this driver with the USB subsystem */
> + usb_deregister(&ixx_usb_driver);
> +
> + pr_info("%s: IXX-USB interfaces driver unloaded\n",
> + IXXAT_USB_DRIVER_NAME);
> +}
> +
> +module_init(ixx_usb_init);
> +module_exit(ixx_usb_exit);
> diff --git a/ubuntu/ixxat/ixx_usb_core.h b/ubuntu/ixxat/ixx_usb_core.h
> new file mode 100644
> index 000000000000..79c11d8f1ea8
> --- /dev/null
> +++ b/ubuntu/ixxat/ixx_usb_core.h
> @@ -0,0 +1,289 @@
> +/*
> + * CAN driver for IXXAT USB-to-CAN V2 adapters
> + *
> + * Copyright (C) 2003-2014 Michael Hengler IXXAT Automation GmbH
> + *
> + * Based on code originally by pcan_usb_core
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published
> + * by the Free Software Foundation; version 2 of the License.
> + *
> + * This program is distributed in the hope that it will be useful, but
> + * WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * General Public License for more details.
> + */
> +#ifndef IXX_USB_CORE_H
> +#define IXX_USB_CORE_H
> +
> +#include <linux/version.h>
> +
> +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 3)
> +#define CANFD_CAPABLE 1
> +#endif
> +
> +extern struct ixx_usb_adapter usb_to_can_v2_compact;
> +extern struct ixx_usb_adapter usb_to_can_v2_automotive;
> +extern struct ixx_usb_adapter usb_to_can_v2_embedded;
> +extern struct ixx_usb_adapter usb_to_can_v2_professional;
> +extern struct ixx_usb_adapter usb_to_can_v2_low_speed;
> +extern struct ixx_usb_adapter usb_to_can_v2_extended;
> +
> +#ifdef CANFD_CAPABLE
> +extern struct ixx_usb_adapter usb_to_can_fd_automotive;
> +extern struct ixx_usb_adapter usb_to_can_fd_compact;
> +extern struct ixx_usb_adapter usb_to_can_fd_professional;
> +extern struct ixx_usb_adapter usb_to_can_fd_pcie_mini;
> +extern struct ixx_usb_adapter usb_to_car;
> +extern struct ixx_usb_adapter dell_edge_gw3002;
> +#endif
> +
> +#ifndef CAN_MAX_DLEN
> +#define CAN_MAX_DLEN 8
> +#endif
> +
> +#ifndef CANFD_MAX_DLEN
> +#define CANFD_MAX_DLEN 64
> +#endif
> +
> +
> +/* supported device ids. */
> +#define USB_TO_CAN_V2_COMPACT_PRODUCT_ID 0x0008
> +#define USB_TO_CAN_V2_EMBEDDED_PRODUCT_ID 0x0009
> +#define USB_TO_CAN_V2_PROFESSIONAL_PRODUCT_ID 0x000A
> +#define USB_TO_CAN_V2_AUTOMOTIVE_PRODUCT_ID 0x000B
> +#define USB_TO_LIN_V2_PRODUCT_ID 0x000C
> +#define USB_TO_KLINE_V2_PRODUCT_ID 0x000D
> +#define USB_TO_CAN_V2_LOW_SPEED_PRODUCT_ID 0xFFFF
> +#define USB_TO_CAN_V2_EXTENDED_PRODUCT_ID 0x000E
> +
> +#define USB_TO_CAN_FD_COMPACT_PRODUCT_ID 0x0014
> +#define USB_TO_CAN_FD_PROFESSIONAL_PRODUCT_ID 0x0016
> +#define USB_TO_CAN_FD_AUTOMOTIVE_PRODUCT_ID 0x0017
> +#define USB_TO_CAN_FD_PCIE_MINI_PRODUCT_ID 0x001B
> +#define USB_TO_CAR_ID 0x001C
> +#define DELL_EDGE_GW3002_PRODUCT_ID 0xFF11
> +
> +#define IXXAT_USB_MAX_CHANNEL 5
> +
> +/* number of urbs that are submitted for rx/tx per channel */
> +#define IXXAT_USB_MAX_RX_URBS 4
> +#define IXXAT_USB_MAX_TX_URBS 10
> +
> +#define IXX_BTMODE_NAT 0x01
> +
> +#define IXXAT_USB_POWER_WAKEUP 0
> +#define IXXAT_USB_POWER_SLEEP 1
> +
> +struct ixx_usb_device;
> +
> +struct ixx_dev_caps
> +{
> + u16 bus_ctrl_count;
> + u16 bus_ctrl_types[32];
> +} __packed;
> +
> +struct ixx_ctrl_caps
> +{
> + u16 ctrl_type;
> + u16 bus_coupling;
> + u32 features;
> + u32 clock_freq;
> + u32 tsc_divisor;
> + u32 cms_divisor;
> + u32 cms_max_ticks;
> + u32 dtx_divisor;
> + u32 dtx_max_ticks;
> +} __packed;
> +
> +struct canbtp
> +{
> + u32 mode; // timing mode (see CAN_BTMODE_ const)
> + u32 bps; // bits per second or prescaler (see CAN_BTMODE_)
> + u16 ts1; // length of time segment 1 in quantas
> + u16 ts2; // length of time segment 2 in quantas
> + u16 sjw; // re-synchronisation jump width in quantas
> + u16 tdo; // transceiver delay compensation offset in quantas
> + // (0 = disabled)
> +} __packed;
> +
> +struct ixx_ctrl_caps_v2
> +{
> + u16 ctrl_type;
> + u16 bus_coupling;
> + u32 features;
> +
> + u32 clock_freq;
> + struct canbtp sdr_range_min;
> + struct canbtp sdr_range_max;
> + struct canbtp fdr_range_min;
> + struct canbtp fdr_range_max;
> +
> + u32 tsc_freq;
> + u32 tsc_divisor;
> +
> + u32 cms_freq;
> + u32 cms_divisor;
> + u32 cms_max_ticks;
> +
> + u32 dtx_freq;
> + u32 dtx_divisor;
> + u32 dtx_max_ticks;
> +} __packed;
> +
> +struct ixx_intf_info
> +{
> + char device_name[16]; // device name
> + char device_id[16]; // device identification ( unique device id)
> + u16 device_version; // device version ( 0, 1, ...)
> + u32 device_fpga_version; // device version of FPGA design
> +} __packed;
> +
> +struct ixx_intf_fw_info
> +{
> + u32 firmware_type; // type of currently running firmware
> + u16 reserved; // reserved
> + u16 major_version; // major firmware version number
> + u16 minor_version; // minor firmware version number
> + u16 build_version; // build firmware version number
> +} __packed;
> +
> +struct ixx_usb_adapter {
> + char *name;
> + u32 device_id;
> + struct can_clock clock;
> + const struct can_bittiming_const bittiming_const;
> + const struct can_bittiming_const data_bittiming_const;
> +
> + unsigned int ctrl_count;
> +
> + u32 ctrlmode_supported;
> +
> + int (*intf_probe)(struct usb_interface *intf);
> +
> + int (*dev_get_dev_caps)(struct usb_device *usb_dev, struct ixx_dev_caps* dev_caps);
> + int (*dev_get_ctrl_caps)(struct usb_device *usb_dev, struct ixx_ctrl_caps* ctrl_caps, int index);
> +
> + int (*intf_get_info)(struct ixx_usb_device *dev, struct ixx_intf_info* intf_info);
> + int (*intf_get_fw_info)(struct ixx_usb_device *dev, struct ixx_intf_fw_info* fw_info);
> +
> + int (*dev_init)(struct ixx_usb_device *dev);
> + void (*dev_exit)(struct ixx_usb_device *dev);
> + void (*dev_free)(struct ixx_usb_device *dev);
> + int (*dev_open)(struct ixx_usb_device *dev);
> + int (*dev_close)(struct ixx_usb_device *dev);
> + int (*dev_set_bittiming)(struct ixx_usb_device *dev, struct can_bittiming *bt);
> + int (*dev_set_bus)(struct ixx_usb_device *dev, u8 onoff);
> + int (*dev_decode_buf)(struct ixx_usb_device *dev, struct urb *urb);
> + int (*dev_encode_msg)(struct ixx_usb_device *dev, struct sk_buff *skb,
> + u8 *obuf, size_t *size);
> + int (*dev_start)(struct ixx_usb_device *dev);
> + int (*dev_stop)(struct ixx_usb_device *dev);
> + int (*dev_restart_async)(struct ixx_usb_device *dev, struct urb *urb,
> + u8 *buf);
> + int (*dev_power)(struct usb_device *usb_dev, u8 mode);
> + u8 ep_msg_in[IXXAT_USB_MAX_CHANNEL];
> + u8 ep_msg_out[IXXAT_USB_MAX_CHANNEL];
> +
> + int rx_buffer_size;
> + int tx_buffer_size;
> + int sizeof_dev_private;
> +
> + int has_bgi_ep;
> +
> +};
> +
> +struct ixx_time_ref {
> + struct timeval tv_host_0;
> + u32 ts_dev_0;
> + u32 ts_dev_last;
> +};
> +
> +struct ixx_tx_urb_context {
> + struct ixx_usb_device *dev;
> + u32 echo_index;
> + u8 dlc;
> + u8 count;
> + struct urb *urb;
> +};
> +
> +/*IXXAT USB device */
> +struct ixx_usb_device {
> + struct can_priv can;
> + struct ixx_usb_adapter *adapter;
> + unsigned int ctrl_idx;
> + u32 state;
> +
> + struct sk_buff *echo_skb[IXXAT_USB_MAX_TX_URBS];
> +
> + struct usb_device *udev;
> + struct net_device *netdev;
> +
> + atomic_t active_tx_urbs;
> + struct usb_anchor tx_submitted;
> + struct ixx_tx_urb_context tx_contexts[IXXAT_USB_MAX_TX_URBS];
> +
> + struct usb_anchor rx_submitted;
> +
> + u32 device_number;
> + u8 device_rev;
> +
> + u8 ep_msg_in;
> + u8 ep_msg_out;
> +
> + u8 transmit_buffer[256];
> + u8 transmit_ptr;
> + u8 transmit_count;
> + u8 transmit_dlc;
> +
> + struct task_struct *restart_task;
> + u8 restart_flag;
> + u8 must_quit;
> + wait_queue_head_t wait_queue;
> +
> + struct ixx_usb_device *prev_siblings;
> + struct ixx_usb_device *next_siblings;
> +
> + u8 btr0;
> + u8 btr1;
> +
> + int ctrl_opened_count;
> +
> + struct ixx_time_ref time_ref;
> +
> + struct ixx_intf_info dev_info;
> + struct ixx_intf_fw_info fw_info;
> +
> + struct can_berr_counter bec;
> +};
> +
> +struct ixx_can_msg
> +{
> + u8 size;
> + u32 time;
> + u32 msg_id;
> + u32 flags;
> + u8 data[CAN_MAX_DLEN];
> +} __packed;
> +
> +struct ixx_can_msg_v2
> +{
> + u8 size;
> + u32 time;
> + u32 msg_id;
> + u32 flags;
> + u32 client_id;
> + u8 data[CANFD_MAX_DLEN];
> +} __packed;
> +
> +void ixxat_dump_mem(char *prompt, void *p, int l);
> +
> +void ixxat_usb_update_ts_now(struct ixx_usb_device *dev, u32 ts_now);
> +void ixxat_usb_set_ts_now(struct ixx_usb_device *dev, u32 ts_now);
> +void ixxat_usb_get_ts_tv(struct ixx_usb_device *dev, u32 ts,
> + ktime_t* k_time);
> +
> +void ixxat_usb_async_complete(struct urb *urb);
> +void ixxat_usb_restart_complete(struct ixx_usb_device *dev);
> +#endif
> diff --git a/ubuntu/ixxat/ixx_usb_fd.c b/ubuntu/ixxat/ixx_usb_fd.c
> new file mode 100644
> index 000000000000..63d5b9944a85
> --- /dev/null
> +++ b/ubuntu/ixxat/ixx_usb_fd.c
> @@ -0,0 +1,1673 @@
> +/*
> + * CAN driver for IXXAT USB-to-CAN FD
> + *
> + * Copyright (C) 2017 Michael Hengler <mhengler at ixxat.de>
> + *
> + * Based on code originally by pcan_usb_core
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published
> + * by the Free Software Foundation; version 2 of the License.
> + *
> + * This program is distributed in the hope that it will be useful, but
> + * WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * General Public License for more details.
> + */
> +#include <linux/netdevice.h>
> +#include <linux/usb.h>
> +#include <linux/module.h>
> +#include <linux/delay.h>
> +#include <linux/can.h>
> +#include <linux/can/dev.h>
> +#include <linux/can/error.h>
> +#include <linux/kthread.h>
> +#include <linux/sched.h>
> +#include <linux/wait.h>
> +#include <linux/types.h>
> +#include <linux/gfp.h>
> +#include <asm-generic/errno.h>
> +#include <stdarg.h>
> +
> +#include "ixx_usb_core.h"
> +
> +#ifdef CANFD_CAPABLE
> +
> +MODULE_SUPPORTED_DEVICE("IXXAT Automation GmbH USB-to-CAN FD");
> +
> +/* use ifi can fd clock due to internal bittiming calculations */
> +#define IFIFD_CRYSTAL_HZ 80000000
> +
> +/* usb-to-can fd Endpoints */
> +#define IXXAT_USBFD_EP_CMDOUT 0
> +#define IXXAT_USBFD_EP_CMDIN (IXXAT_USBFD_EP_CMDOUT | USB_DIR_IN)
> +#define IXXAT_USBFD_EP_MSGOUT_0 1
> +#define IXXAT_USBFD_EP_MSGIN_0 (IXXAT_USBFD_EP_MSGOUT_0 | USB_DIR_IN)
> +#define IXXAT_USBFD_EP_MSGOUT_1 2
> +#define IXXAT_USBFD_EP_MSGIN_1 (IXXAT_USBFD_EP_MSGOUT_1 | USB_DIR_IN)
> +#define IXXAT_USBFD_EP_MSGOUT_2 3
> +#define IXXAT_USBFD_EP_MSGIN_2 (IXXAT_USBFD_EP_MSGOUT_2 | USB_DIR_IN)
> +#define IXXAT_USBFD_EP_MSGOUT_3 4
> +#define IXXAT_USBFD_EP_MSGIN_3 (IXXAT_USBFD_EP_MSGOUT_3 | USB_DIR_IN)
> +#define IXXAT_USBFD_EP_MSGOUT_4 5
> +#define IXXAT_USBFD_EP_MSGIN_4 (IXXAT_USBFD_EP_MSGOUT_4 | USB_DIR_IN)
> +
> +/* DELL Edge GW3002 Endpoints */
> +#define DELL_EDGE_GW3002_EP_MSGOUT_0 1
> +#define DELL_EDGE_GW3002_EP_MSGIN_0 (2 | USB_DIR_IN)
> +#define DELL_EDGE_GW3002_EP_MSGOUT_1 3
> +#define DELL_EDGE_GW3002_EP_MSGIN_1 (4 | USB_DIR_IN)
> +#define DELL_EDGE_GW3002_EP_MSGOUT_2 5
> +#define DELL_EDGE_GW3002_EP_MSGIN_2 (6 | USB_DIR_IN)
> +#define DELL_EDGE_GW3002_EP_MSGOUT_3 7
> +#define DELL_EDGE_GW3002_EP_MSGIN_3 (8 | USB_DIR_IN)
> +#define DELL_EDGE_GW3002_EP_MSGOUT_4 9
> +#define DELL_EDGE_GW3002_EP_MSGIN_4 (10 | USB_DIR_IN)
> +
> +/* usb-to-can fd rx/tx buffers size */
> +#define IXXAT_USBFD_RX_BUFFER_SIZE 512
> +#define IXXAT_USBFD_TX_BUFFER_SIZE 512
> +
> +#define IXXAT_USBFD_CMD_BUFFER_SIZE 256
> +
> +/* reception of 11-bit id messages */
> +#define IXXAT_USBFD_OPMODE_STANDARD 0x01
> +/* reception of 29-bit id messages */
> +#define IXXAT_USBFD_OPMODE_EXTENDED 0x02
> +/* enable reception of error frames */
> +#define IXXAT_USBFD_OPMODE_ERRFRAME 0x04
> +/* listen only mode (TX passive) */
> +#define IXXAT_USBFD_OPMODE_LISTONLY 0x08
> +
> +/* no extended operation */
> +#define IXXAT_USBFD_EXMODE_DISABLED 0x00
> +/* extended data length */
> +#define IXXAT_USBFD_EXMODE_EXTDATA 0x01
> +/* fast data bit rate */
> +#define IXXAT_USBFD_EXMODE_FASTDATA 0x02
> +/* ISO conform CAN-FD frame */
> +#define IXXAT_USBFD_EXMODE_ISOFD 0x04
> +
> +/* Stuff error */
> +#define IXXAT_USBFD_CAN_ERROR_STUFF 1
> +/* Form error */
> +#define IXXAT_USBFD_CAN_ERROR_FORM 2
> +/* Acknowledgment error */
> +#define IXXAT_USBFD_CAN_ERROR_ACK 3
> +/* Bit error */
> +#define IXXAT_USBFD_CAN_ERROR_BIT 4
> +/* Fast data bit rate error */
> +#define IXXAT_USBFD_CAN_ERROR_FAST_DATA 5
> +/* CRC error */
> +#define IXXAT_USBFD_CAN_ERROR_CRC 6
> +/* Other (unspecified) error */
> +#define IXXAT_USBFD_CAN_ERROR_OTHER 7
> +
> +/* Data overrun occurred */
> +#define IXXAT_USBFD_CAN_STATUS_OVRRUN 0x02
> +/* Error warning limit exceeded */
> +#define IXXAT_USBFD_CAN_STATUS_ERRLIM 0x04
> +/* Bus off status */
> +#define IXXAT_USBFD_CAN_STATUS_BUSOFF 0x08
> +
> +#define IXXAT_USBFD_CAN_DATA 0x00
> +#define IXXAT_USBFD_CAN_INFO 0x01
> +#define IXXAT_USBFD_CAN_ERROR 0x02
> +#define IXXAT_USBFD_CAN_STATUS 0x03
> +#define IXXAT_USBFD_CAN_WAKEUP 0x04
> +#define IXXAT_USBFD_CAN_TIMEOVR 0x05
> +#define IXXAT_USBFD_CAN_TIMERST 0x06
> +
> +
> +#define IXXAT_USBFD_MSG_FLAGS_TYPE 0x000000FF
> +#define IXXAT_USBFD_MSG_FLAGS_SSM 0x00000100
> +#define IXXAT_USBFD_MSG_FLAGS_HPM 0x00000200
> +#define IXXAT_USBFD_MSG_FLAGS_EDL 0x00000400
> +#define IXXAT_USBFD_MSG_FLAGS_FDR 0x00000800
> +#define IXXAT_USBFD_MSG_FLAGS_ESI 0x00001000
> +#define IXXAT_USBFD_MSG_FLAGS_RES 0x0000E000
> +#define IXXAT_USBFD_MSG_FLAGS_DLC 0x000F0000
> +#define IXXAT_USBFD_MSG_FLAGS_OVR 0x00100000
> +#define IXXAT_USBFD_MSG_FLAGS_SRR 0x00200000
> +#define IXXAT_USBFD_MSG_FLAGS_RTR 0x00400000
> +#define IXXAT_USBFD_MSG_FLAGS_EXT 0x00800000
> +#define IXXAT_USBFD_MSG_FLAGS_AFC 0xFF000000
> +
> +#define IXXAT_USBFD_BAL_CMD_CLASS 3
> +#define IXXAT_USBFD_BRD_CMD_CLASS 4
> +
> +#define IXXAT_USBFD_BRD_CMD_CAT 0
> +#define IXXAT_USBFD_CAN_CMD_CAT 1
> +
> +#define IXXAT_USBFD_VCI_CMD_CODE(Class, Function) \
> + ((u32) (((Class) << 8) | (Function)))
> +
> +#define IXXAT_USBFD_BRD_CMD_CODE(Category, Function) \
> + IXXAT_USBFD_VCI_CMD_CODE(IXXAT_USBFD_BRD_CMD_CLASS, \
> + ((Category) << 5) | (Function))
> +
> +#define IXXAT_USBFD_BAL_CMD_CODE(Category, Function) \
> + IXXAT_USBFD_VCI_CMD_CODE(IXXAT_USBFD_BAL_CMD_CLASS, \
> + ((Category) << 5) | (Function))
> +
> +#define IXXAT_USBFD_CAN_GET_CAPS_CMD \
> + IXXAT_USBFD_BAL_CMD_CODE(IXXAT_USBFD_CAN_CMD_CAT, 0)
> +#define IXXAT_USBFD_POWER_CMD \
> + IXXAT_USBFD_BRD_CMD_CODE(IXXAT_USBFD_CAN_CMD_CAT, 1)
> +#define IXXAT_USBFD_CAN_INIT_CMD \
> + IXXAT_USBFD_BAL_CMD_CODE(IXXAT_USBFD_CAN_CMD_CAT, 5)
> +#define IXXAT_USBFD_CAN_START_CMD \
> + IXXAT_USBFD_BAL_CMD_CODE(IXXAT_USBFD_CAN_CMD_CAT, 6)
> +#define IXXAT_USBFD_CAN_STOP_CMD \
> + IXXAT_USBFD_BAL_CMD_CODE(IXXAT_USBFD_CAN_CMD_CAT, 7)
> +#define IXXAT_USBFD_CAN_RESET_CMD \
> + IXXAT_USBFD_BAL_CMD_CODE(IXXAT_USBFD_CAN_CMD_CAT, 8)
> +/* Additional commands for USB-to-CAN FD */
> +#define IXXAT_USBFD_INIT_V2_CMD \
> + IXXAT_USBFD_BAL_CMD_CODE(IXXAT_USBFD_CAN_CMD_CAT, 23)
> +
> +#define IXXAT_USBFD_BRD_GET_FWINFO_CMD \
> + IXXAT_USBFD_BRD_CMD_CODE(IXXAT_USBFD_BRD_CMD_CAT, 0)
> +#define IXXAT_USBFD_BRD_GET_DEVCAPS_CMD \
> + IXXAT_USBFD_BRD_CMD_CODE(IXXAT_USBFD_BRD_CMD_CAT, 1)
> +#define IXXAT_USBFD_BRD_GET_DEVINFO_CMD \
> + IXXAT_USBFD_BRD_CMD_CODE(IXXAT_USBFD_BRD_CMD_CAT, 2)
> +
> +struct ixx_usbfd_dal_req {
> + u32 req_size;
> + u16 req_port;
> + u16 req_socket;
> + u32 req_code;
> +} __packed;
> +
> +struct ixx_usbfd_dal_res {
> + u32 res_size;
> + u32 ret_size;
> + u32 ret_code;
> +} __packed;
> +
> +// Additional structures for the for USB-to-CAN FD
> +
> +struct ixx_usbfd_dev_power_req {
> + struct ixx_usbfd_dal_req dal_req;
> + u8 mode;
> + u8 _padding1;
> + u16 _padding2;
> +} __packed;
> +
> +struct ixx_usbfd_dev_power_res {
> + struct ixx_usbfd_dal_res dal_res;
> +} __packed;
> +
> +struct ixx_usbfd_ctrl_init_v2_req {
> + struct ixx_usbfd_dal_req dal_req;
> + u8 opmode;
> + u8 exmode;
> + struct canbtp sdr;
> + struct canbtp fdr;
> + u16 _padding;
> +} __packed;
> +
> +struct ixx_usbfd_ctrl_init_v2_res {
> + struct ixx_usbfd_dal_res dal_res;
> +} __packed;
> +
> +struct ixx_usbfd_dev_caps_req {
> + struct ixx_usbfd_dal_req dal_req;
> +} __packed;
> +
> +struct ixx_usbfd_dev_caps_res {
> + struct ixx_usbfd_dal_res dal_res;
> + struct ixx_dev_caps dev_caps;
> +} __packed;
> +
> +struct ixx_usbfd_ctrl_caps_req {
> + struct ixx_usbfd_dal_req dal_req;
> +} __packed;
> +
> +struct ixx_usbfd_ctrl_caps_res {
> + struct ixx_usbfd_dal_res dal_res;
> + struct ixx_ctrl_caps ctrl_caps;
> +} __packed;
> +
> +struct ixx_usbfd_ctrl_init_req {
> + struct ixx_usbfd_dal_req dal_req;
> + u8 mode;
> + u8 btr0;
> + u8 btr1;
> + u8 padding;
> +} __packed;
> +
> +struct ixx_usbfd_ctrl_init_res {
> + struct ixx_usbfd_dal_res dal_res;
> +} __packed;
> +
> +struct ixx_usbfd_ctrl_start_req {
> + struct ixx_usbfd_dal_req dal_req;
> +} __packed;
> +
> +struct ixx_usbfd_ctrl_start_res {
> + struct ixx_usbfd_dal_res dal_res;
> + u32 start_time;
> +} __packed;
> +
> +struct ixx_usbfd_ctrl_stop_req {
> + struct ixx_usbfd_dal_req dal_req;
> + u32 action;
> +} __packed;
> +
> +struct ixx_usbfd_ctrl_stop_res {
> + struct ixx_usbfd_dal_res dal_res;
> +} __packed;
> +
> +struct ixx_usbfd_brd_get_fwinfo_req {
> + struct ixx_usbfd_dal_req dal_req;
> +} __packed;
> +
> +struct ixx_usbfd_brd_get_fwinfo_res {
> + struct ixx_usbfd_dal_res dal_res;
> + struct ixx_intf_fw_info fwinfo;
> +} __packed;
> +
> +struct ixx_usbfd_brd_get_intf_info_req {
> + struct ixx_usbfd_dal_req dal_req;
> +} __packed;
> +
> +struct ixx_usbfd_brd_get_intf_info_res {
> + struct ixx_usbfd_dal_res dal_res;
> + struct ixx_intf_info info;
> +} __packed;
> +
> +/*
> + * send usb-to-can fd command synchronously
> + */
> +static int ixx_usbfd_send_cmd(struct usb_device *dev,
> + struct ixx_usbfd_dal_req *dal_req)
> +{
> + int err, i;
> + u16 size, value;
> + u8 request, requesttype;
> + u8 *buf;
> +
> + request = 0xff;
> + requesttype = USB_TYPE_VENDOR | USB_DIR_OUT;
> + value = le16_to_cpu(dal_req->req_port);
> + size = le32_to_cpu(dal_req->req_size) +
> + sizeof(const struct ixx_usbfd_dal_res);
> +
> + buf = kmalloc(size, GFP_KERNEL);
> + if(!buf)
> + return -ENOMEM;
> + memcpy(buf, (u8 *)dal_req, size);
> +
> + for (i = 0; i < 10; ++i) {
> + err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request,
> + requesttype,
> + value,
> + 0,
> + buf,
> + size,
> + msecs_to_jiffies(50));
> +
> + if (err < 0)
> + msleep(20);
> + else
> + break;
> + }
> +
> + kfree(buf);
> +
> + if (err < 0) {
> + dev_err(&dev->dev, "sending command failure: %d\n", err);
> + return err;
> + }
> +
> + return 0;
> +}
> +
> +/*
> + * receive usb-to-can fd command synchronously
> + */
> +static int ixx_usbfd_rcv_cmd(struct usb_device *dev,
> + struct ixx_usbfd_dal_res *dal_res, int value)
> +{
> + int err, res_size, i, size_to_read;
> + u8 request, requesttype;
> + u8 *buf;
> +
> + request = 0xff;
> + requesttype = USB_TYPE_VENDOR | USB_DIR_IN;
> + res_size = 0;
> + size_to_read = le32_to_cpu(dal_res->res_size);
> +
> + buf = kmalloc(size_to_read, GFP_KERNEL);
> + if(!buf)
> + return -ENOMEM;
> +
> + for (i = 0; i < 10; ++i) {
> + err = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), request,
> + requesttype, value,
> + 0, buf + (u8) res_size,
> + size_to_read - res_size, msecs_to_jiffies(50));
> +
> + if (err < 0) {
> + msleep(20);
> + continue;
> + }
> +
> + res_size += err;
> + if (res_size < size_to_read)
> + msleep(20);
> + else
> + break;
> + }
> +
> + if (res_size != size_to_read)
> + err = -EBADMSG;
> +
> + if (err < 0) {
> + dev_err(&dev->dev, "receiving command failure: %d\n", err);
> + kfree(buf);
> + return err;
> + }
> +
> + memcpy((u8 *)dal_res, buf, size_to_read);
> + kfree(buf);
> +
> + return err;
> +}
> +
> +static int ixx_usbfd_init_ctrl(struct ixx_usb_device *dev, u8 mode,
> + u8 exmode,
> + struct can_bittiming *arbitration_phase,
> + struct can_bittiming *data_phase)
> +{
> + int err = -ENODEV;
> + u8 data[IXXAT_USBFD_CMD_BUFFER_SIZE] = { 0 };
> + struct ixx_usbfd_ctrl_init_v2_req *ctrl_init_req;
> + struct ixx_usbfd_ctrl_init_v2_res *ctrl_init_res;
> + u32 req_size = sizeof(*ctrl_init_req);
> +
> + ctrl_init_req = (struct ixx_usbfd_ctrl_init_v2_req *) data;
> + ctrl_init_res = (struct ixx_usbfd_ctrl_init_v2_res *)(data + req_size);
> +
> + ctrl_init_req->dal_req.req_size = cpu_to_le32(req_size);
> + ctrl_init_req->dal_req.req_code =
> + cpu_to_le32(IXXAT_USBFD_INIT_V2_CMD);
> + ctrl_init_req->dal_req.req_port = cpu_to_le16(dev->ctrl_idx);
> + ctrl_init_req->dal_req.req_socket = 0xffff;
> + ctrl_init_req->opmode = mode;
> + ctrl_init_req->exmode = exmode;
> +
> + ctrl_init_req->sdr.mode = cpu_to_le32(IXX_BTMODE_NAT);
> + ctrl_init_req->sdr.bps = cpu_to_le32(arbitration_phase->brp);
> + ctrl_init_req->sdr.ts1 =
> + cpu_to_le16(arbitration_phase->prop_seg +
> + arbitration_phase->phase_seg1);
> + ctrl_init_req->sdr.ts2 = cpu_to_le16(arbitration_phase->phase_seg2);
> + ctrl_init_req->sdr.sjw = cpu_to_le16(arbitration_phase->sjw);
> + ctrl_init_req->sdr.tdo = 0;
> +
> + if (exmode) {
> + ctrl_init_req->fdr.mode = cpu_to_le32(IXX_BTMODE_NAT);
> + ctrl_init_req->fdr.bps = cpu_to_le32(data_phase->brp);
> + ctrl_init_req->fdr.ts1 =
> + cpu_to_le16(data_phase->prop_seg +
> + data_phase->phase_seg1);
> + ctrl_init_req->fdr.ts2 = cpu_to_le16(data_phase->phase_seg2);
> + ctrl_init_req->fdr.sjw = cpu_to_le16(data_phase->sjw);
> + ctrl_init_req->fdr.tdo =
> + cpu_to_le16((1 + data_phase->phase_seg1 +
> + data_phase->prop_seg) *
> + data_phase->brp);
> + }
> +
> + ctrl_init_res->dal_res.res_size =
> + cpu_to_le32(sizeof(*ctrl_init_res));
> + ctrl_init_res->dal_res.ret_size = 0;
> + ctrl_init_res->dal_res.ret_code = 0xffffffff;
> +
> + err = ixx_usbfd_send_cmd(dev->udev, &ctrl_init_req->dal_req);
> + if (err < 0)
> + return err;
> +
> + err = ixx_usbfd_rcv_cmd(dev->udev,
> + &ctrl_init_res->dal_res,
> + dev->ctrl_idx);
> + if (err < 0)
> + return err;
> +
> + return le32_to_cpu(ctrl_init_res->dal_res.ret_code);
> +}
> +
> +static int ixx_usbfd_start_ctrl(struct ixx_usb_device *dev, u32 *time_ref)
> +{
> + int err = -ENODEV;
> + u8 data[IXXAT_USBFD_CMD_BUFFER_SIZE] = { 0 };
> + struct ixx_usbfd_ctrl_start_req *ctrl_start_req;
> + struct ixx_usbfd_ctrl_start_res *ctrl_start_res;
> + u32 req_size = sizeof(*ctrl_start_req);
> +
> + ctrl_start_req = (struct ixx_usbfd_ctrl_start_req *) data;
> + ctrl_start_res = (struct ixx_usbfd_ctrl_start_res *)(data + req_size);
> +
> + ctrl_start_req->dal_req.req_size = cpu_to_le32(req_size);
> + ctrl_start_req->dal_req.req_code =
> + cpu_to_le32(IXXAT_USBFD_CAN_START_CMD);
> + ctrl_start_req->dal_req.req_port = cpu_to_le16(dev->ctrl_idx);
> + ctrl_start_req->dal_req.req_socket = 0xffff;
> +
> + ctrl_start_res->dal_res.res_size =
> + cpu_to_le32(sizeof(*ctrl_start_res));
> + ctrl_start_res->dal_res.ret_size = 0;
> + ctrl_start_res->dal_res.ret_code = 0xffffffff;
> + ctrl_start_res->start_time = 0;
> +
> + err = ixx_usbfd_send_cmd(dev->udev, &ctrl_start_req->dal_req);
> + if (err < 0)
> + return err;
> +
> + err = ixx_usbfd_rcv_cmd(dev->udev,
> + &ctrl_start_res->dal_res,
> + dev->ctrl_idx);
> + if (err < 0)
> + return err;
> +
> + if (time_ref)
> + *time_ref = le32_to_cpu(ctrl_start_res->start_time);
> +
> + return le32_to_cpu(ctrl_start_res->dal_res.ret_code);
> +}
> +
> +static int ixx_usbfd_stop_ctrl(struct ixx_usb_device *dev)
> +{
> + int err = -ENODEV;
> + u8 data[IXXAT_USBFD_CMD_BUFFER_SIZE] = { 0 };
> + struct ixx_usbfd_ctrl_stop_req *ctrl_stop_req;
> + struct ixx_usbfd_ctrl_stop_res *ctrl_stop_res;
> + u32 req_size = sizeof(*ctrl_stop_req);
> +
> + ctrl_stop_req = (struct ixx_usbfd_ctrl_stop_req *) data;
> + ctrl_stop_res = (struct ixx_usbfd_ctrl_stop_res *)(data + req_size);
> +
> + ctrl_stop_req->dal_req.req_size = cpu_to_le32(req_size);
> + ctrl_stop_req->dal_req.req_code =
> + cpu_to_le32(IXXAT_USBFD_CAN_STOP_CMD);
> + ctrl_stop_req->dal_req.req_port = cpu_to_le16(dev->ctrl_idx);
> + ctrl_stop_req->dal_req.req_socket = 0xffff;
> + ctrl_stop_req->action = cpu_to_le32(0x3);
> +
> + ctrl_stop_res->dal_res.res_size =
> + cpu_to_le32(sizeof(*ctrl_stop_res));
> + ctrl_stop_res->dal_res.ret_size = 0;
> + ctrl_stop_res->dal_res.ret_code = 0xffffffff;
> +
> + err = ixx_usbfd_send_cmd(dev->udev, &ctrl_stop_req->dal_req);
> + if (err < 0)
> + return err;
> +
> + err = ixx_usbfd_rcv_cmd(dev->udev,
> + &ctrl_stop_res->dal_res,
> + dev->ctrl_idx);
> + if (err < 0)
> + return err;
> +
> + if (!le32_to_cpu(ctrl_stop_res->dal_res.ret_code))
> + dev->can.state = CAN_STATE_STOPPED;
> +
> + return le32_to_cpu(ctrl_stop_res->dal_res.ret_code);
> +}
> +
> +static int ixx_usbfd_reset_ctrl(struct ixx_usb_device *dev)
> +{
> + int err = -ENODEV;
> + u8 data[IXXAT_USBFD_CMD_BUFFER_SIZE] = { 0 };
> + struct ixx_usbfd_dal_req *dal_req;
> + struct ixx_usbfd_dal_res *dal_res;
> + u32 req_size = sizeof(*dal_req);
> +
> + dal_req = (struct ixx_usbfd_dal_req *) data;
> + dal_res = (struct ixx_usbfd_dal_res *)(data + req_size);
> +
> + dal_req->req_size = cpu_to_le32(req_size);
> + dal_req->req_code = cpu_to_le32(IXXAT_USBFD_CAN_RESET_CMD);
> + dal_req->req_port = cpu_to_le16(dev->ctrl_idx);
> + dal_req->req_socket = 0xffff;
> +
> + dal_res->res_size = cpu_to_le32(sizeof(*dal_res));
> + dal_res->ret_size = 0;
> + dal_res->ret_code = 0xffffffff;
> +
> + err = ixx_usbfd_send_cmd(dev->udev, dal_req);
> + if (err < 0)
> + return err;
> +
> + err = ixx_usbfd_rcv_cmd(dev->udev, dal_res,
> + dev->ctrl_idx);
> + if (err < 0)
> + return err;
> +
> + return le32_to_cpu(dal_res->ret_code);
> +}
> +
> +static int ixx_usbfd_power_ctrl(struct usb_device *dev, u8 mode)
> +{
> + int err = -ENODEV;
> + u8 data[IXXAT_USBFD_CMD_BUFFER_SIZE] = { 0 };
> + struct ixx_usbfd_dev_power_req *ctrl_power_req;
> + struct ixx_usbfd_dev_power_res *ctrl_power_res;
> + u32 req_size = sizeof(*ctrl_power_req);
> +
> + ctrl_power_req = (struct ixx_usbfd_dev_power_req *) data;
> + ctrl_power_res = (struct ixx_usbfd_dev_power_res *)(data + req_size);
> +
> + ctrl_power_req->dal_req.req_size = cpu_to_le32(req_size);
> + ctrl_power_req->dal_req.req_code =
> + cpu_to_le32(IXXAT_USBFD_POWER_CMD);
> + ctrl_power_req->dal_req.req_port = cpu_to_le16(0xffff);
> + ctrl_power_req->dal_req.req_socket = 0xffff;
> + ctrl_power_req->mode = mode;
> +
> + ctrl_power_res->dal_res.res_size =
> + cpu_to_le32(sizeof(*ctrl_power_res));
> + ctrl_power_res->dal_res.ret_size = 0;
> + ctrl_power_res->dal_res.ret_code = 0xffffffff;
> +
> + err = ixx_usbfd_send_cmd(dev, &ctrl_power_req->dal_req);
> + if (err < 0)
> + return err;
> +
> + err = ixx_usbfd_rcv_cmd(dev,
> + &ctrl_power_res->dal_res,
> + 0xffff);
> + if (err < 0)
> + return err;
> +
> + return le32_to_cpu(ctrl_power_res->dal_res.ret_code);
> +}
> +
> +/*
> + * handle restart but in asynchronously way
> + */
> +static int ixx_usbfd_restart_task(void *user_data)
> +{
> + u32 time_ref;
> + struct ixx_usb_device *dev = user_data;
> +
> + while (!kthread_should_stop()) {
> + if (!dev->must_quit) {
> + wait_event_interruptible(dev->wait_queue,
> + dev->restart_flag);
> + if (!dev->must_quit) {
> + ixx_usbfd_stop_ctrl(dev);
> + ixx_usbfd_start_ctrl(dev, &time_ref);
> + dev->restart_flag = 0;
> + dev->can.state = CAN_STATE_ERROR_ACTIVE;
> + }
> + } else
> + msleep(20);
> + }
> + return 0;
> +}
> +
> +static int ixx_usbfd_handle_canmsg(struct ixx_usb_device *dev,
> + struct ixx_can_msg_v2 *rx)
> +{
> + struct net_device *netdev = dev->netdev;
> + struct canfd_frame *can_frame;
> + struct sk_buff *skb;
> + const u32 flags = le32_to_cpu(rx->flags);
> +
> + if (flags & IXXAT_USBFD_MSG_FLAGS_EDL)
> + skb = alloc_canfd_skb(netdev, &can_frame);
> + else
> + skb = alloc_can_skb(netdev, (struct can_frame **)&can_frame);
> +
> + if (!skb)
> + return -ENOMEM;
> +
> + if (flags & IXXAT_USBFD_MSG_FLAGS_EDL) {
> + if (flags & IXXAT_USBFD_MSG_FLAGS_FDR)
> + can_frame->flags |= CANFD_BRS;
> +
> + if (flags & IXXAT_USBFD_MSG_FLAGS_ESI)
> + can_frame->flags |= CANFD_ESI;
> +
> + can_frame->len =
> + can_dlc2len(
> + get_canfd_dlc((flags & IXXAT_USBFD_MSG_FLAGS_DLC)
> + >> 16));
> + } else {
> + can_frame->len =
> + get_canfd_dlc((flags & IXXAT_USBFD_MSG_FLAGS_DLC)
> + >> 16);
> + }
> +
> + if (flags & IXXAT_USBFD_MSG_FLAGS_OVR) {
> + netdev->stats.rx_over_errors++;
> + netdev->stats.rx_errors++;
> + }
> +
> + can_frame->can_id = le32_to_cpu(rx->msg_id);
> +
> + if (flags & IXXAT_USBFD_MSG_FLAGS_EXT)
> + can_frame->can_id |= CAN_EFF_FLAG;
> +
> + if (flags & IXXAT_USBFD_MSG_FLAGS_RTR)
> + can_frame->can_id |= CAN_RTR_FLAG;
> + else
> + memcpy(can_frame->data, rx->data, can_frame->len);
> +
> + ixxat_usb_get_ts_tv(dev, le32_to_cpu(rx->time), &skb->tstamp);
> +
> + netif_rx(skb);
> + netdev->stats.rx_packets++;
> + netdev->stats.rx_bytes += can_frame->len;
> +
> + return 0;
> +}
> +
> +static int ixx_usbfd_handle_error(struct ixx_usb_device *dev,
> + struct ixx_can_msg_v2 *rx)
> +{
> + struct net_device *netdev = dev->netdev;
> + struct can_frame *can_frame;
> + struct sk_buff *skb;
> + u8 raw_status = 0;
> +
> + /* nothing should be sent while in BUS_OFF state */
> + if (dev->can.state == CAN_STATE_BUS_OFF)
> + return 0;
> +
> + raw_status = rx->data[0];
> +
> + /* allocate an skb to store the error frame */
> + skb = alloc_can_err_skb(netdev, &can_frame);
> + if (!skb)
> + return -ENOMEM;
> +
> + switch (raw_status) {
> + case IXXAT_USBFD_CAN_ERROR_ACK:
> + can_frame->can_id |= CAN_ERR_ACK;
> + netdev->stats.tx_errors++;
> + break;
> + case IXXAT_USBFD_CAN_ERROR_BIT:
> + can_frame->can_id |= CAN_ERR_PROT;
> + can_frame->data[2] |= CAN_ERR_PROT_BIT;
> + netdev->stats.rx_errors++;
> + break;
> + case IXXAT_USBFD_CAN_ERROR_CRC:
> + can_frame->can_id |= CAN_ERR_PROT;
> + can_frame->data[3] |= CAN_ERR_PROT_LOC_CRC_SEQ;
> + netdev->stats.rx_errors++;
> + break;
> + case IXXAT_USBFD_CAN_ERROR_FORM:
> + can_frame->can_id |= CAN_ERR_PROT;
> + can_frame->data[2] |= CAN_ERR_PROT_FORM;
> + netdev->stats.rx_errors++;
> + break;
> + case IXXAT_USBFD_CAN_ERROR_STUFF:
> + can_frame->can_id |= CAN_ERR_PROT;
> + can_frame->data[2] |= CAN_ERR_PROT_STUFF;
> + netdev->stats.rx_errors++;
> + break;
> + case IXXAT_USBFD_CAN_ERROR_OTHER:
> + can_frame->can_id |= CAN_ERR_PROT;
> + can_frame->data[2] |= CAN_ERR_PROT_UNSPEC;
> + netdev->stats.rx_errors++;
> + break;
> + default:
> + can_frame->can_id |= CAN_ERR_PROT;
> + netdev->stats.rx_errors++;
> + }
> +
> + netif_rx(skb);
> + netdev->stats.rx_packets++;
> + netdev->stats.rx_bytes += can_frame->can_dlc;
> +
> + dev->bec.txerr = le16_to_cpu(rx->data[1]);
> + dev->bec.rxerr = le16_to_cpu(rx->data[3]);
> +
> + return 0;
> +}
> +
> +static int ixx_usbfd_handle_status(struct ixx_usb_device *dev,
> + struct ixx_can_msg_v2 *rx)
> +{
> + struct net_device *netdev = dev->netdev;
> + struct can_frame *can_frame;
> + struct sk_buff *skb;
> + u8 raw_status = 0;
> + u32 new_state = 0;
> +
> + raw_status = rx->data[0];
> +
> + /* nothing should be sent while in BUS_OFF state */
> + if (dev->can.state == CAN_STATE_BUS_OFF)
> + return 0;
> +
> + if (!raw_status) {
> + /* no error bit (back to active state) */
> + dev->can.state = CAN_STATE_ERROR_ACTIVE;
> +
> + dev->bec.txerr = 0;
> + dev->bec.rxerr = 0;
> + return 0;
> + }
> +
> + /* allocate an skb to store the error frame */
> + skb = alloc_can_err_skb(netdev, &can_frame);
> + if (!skb)
> + return -ENOMEM;
> +
> + if (raw_status & IXXAT_USBFD_CAN_STATUS_BUSOFF) {
> + can_frame->can_id |= CAN_ERR_BUSOFF;
> + new_state = CAN_STATE_BUS_OFF;
> + dev->can.can_stats.bus_off++;
> + can_bus_off(netdev);
> + } else {
> + if (raw_status & IXXAT_USBFD_CAN_STATUS_ERRLIM) {
> + can_frame->can_id |= CAN_ERR_CRTL;
> + can_frame->data[1] |= CAN_ERR_CRTL_TX_WARNING;
> + can_frame->data[1] |= CAN_ERR_CRTL_RX_WARNING;
> + dev->can.can_stats.error_warning++;
> + new_state = CAN_STATE_ERROR_WARNING;
> + }
> +
> + if (raw_status & IXXAT_USBFD_CAN_STATUS_OVRRUN) {
> + can_frame->can_id |= CAN_ERR_PROT;
> + can_frame->data[2] |= CAN_ERR_PROT_OVERLOAD;
> + netdev->stats.rx_over_errors++;
> + netdev->stats.rx_errors++;
> + }
> +
> + if (!new_state) {
> + new_state = CAN_STATE_ERROR_ACTIVE;
> +
> + dev->bec.txerr = 0;
> + dev->bec.rxerr = 0;
> + }
> + }
> +
> + dev->can.state = new_state;
> +
> + netif_rx(skb);
> + netdev->stats.rx_packets++;
> + netdev->stats.rx_bytes += can_frame->can_dlc;
> +
> + return 0;
> +}
> +
> +/*
> + * callback for bulk IN urb
> + */
> +static int ixx_usbfd_decode_buf(struct ixx_usb_device *dev, struct urb *urb)
> +{
> + struct net_device *netdev = dev->netdev;
> + struct ixx_can_msg_v2 *can_msg;
> + u32 msg_end;
> + int err = 0;
> + u32 read_size = 0;
> + u8 msg_type;
> +
> + u8 *data = urb->transfer_buffer;
> +
> + /* loop reading all the records from the incoming message */
> + msg_end = urb->actual_length;
> + for (; msg_end > 0;) {
> + can_msg = (struct ixx_can_msg_v2 *) &data[read_size];
> +
> + if (!can_msg || !can_msg->size) {
> + netdev_err(netdev, "got unsupported rec in usb msg:\n");
> + err = -ENOTSUPP;
> + break;
> + }
> +
> + /* check if the record goes out of current packet */
> + if ((read_size + can_msg->size + 1) > urb->actual_length) {
> + netdev_err(netdev,
> + "got frag rec: should inc usb rx buf size\n");
> + err = -EBADMSG;
> + break;
> + }
> +
> + msg_type = (le32_to_cpu(can_msg->flags) &
> + IXXAT_USBFD_MSG_FLAGS_TYPE);
> +
> + switch (msg_type) {
> +
> + case IXXAT_USBFD_CAN_DATA:
> + err = ixx_usbfd_handle_canmsg(dev, can_msg);
> + if (err < 0)
> + goto fail;
> + break;
> +
> + case IXXAT_USBFD_CAN_STATUS:
> + err = ixx_usbfd_handle_status(dev, can_msg);
> + if (err < 0)
> + goto fail;
> + break;
> +
> + case IXXAT_USBFD_CAN_ERROR:
> + err = ixx_usbfd_handle_error(dev, can_msg);
> + if (err < 0)
> + goto fail;
> + break;
> +
> + case IXXAT_USBFD_CAN_TIMEOVR:
> + ixxat_usb_get_ts_tv(dev, can_msg->time, NULL);
> + break;
> +
> + case IXXAT_USBFD_CAN_INFO:
> + case IXXAT_USBFD_CAN_WAKEUP:
> + case IXXAT_USBFD_CAN_TIMERST:
> + break;
> +
> + default:
> + netdev_err(netdev,
> + "unhandled rec type 0x%02x (%d): ignored\n",
> + msg_type, msg_type);
> + break;
> + }
> +
> + read_size += can_msg->size + 1;
> + msg_end -= (can_msg->size + 1);
> + }
> +
> +fail:
> + if (err)
> + ixxat_dump_mem("received msg", urb->transfer_buffer,
> + urb->actual_length);
> +
> + return err;
> +}
> +
> +static int ixx_usbfd_encode_msg(struct ixx_usb_device *dev, struct sk_buff *skb,
> + u8 *obuf, size_t *size)
> +{
> + struct canfd_frame *cf = (struct canfd_frame *) skb->data;
> + struct ixx_can_msg_v2 can_msg = { 0 };
> +
> + if (cf->can_id & CAN_RTR_FLAG)
> + can_msg.flags |= IXXAT_USBFD_MSG_FLAGS_RTR;
> +
> + if (cf->can_id & CAN_EFF_FLAG) {
> + can_msg.flags |= IXXAT_USBFD_MSG_FLAGS_EXT;
> + can_msg.msg_id = cf->can_id & CAN_EFF_MASK;
> + } else {
> + can_msg.msg_id = cf->can_id & CAN_SFF_MASK;
> + }
> +
> + if (dev->can.ctrlmode & CAN_CTRLMODE_ONE_SHOT)
> + can_msg.flags |= IXXAT_USBFD_MSG_FLAGS_SSM;
> +
> + if (skb->len == CANFD_MTU) {
> + can_msg.flags |= IXXAT_USBFD_MSG_FLAGS_EDL;
> +
> + if (!(cf->can_id & CAN_RTR_FLAG) && (cf->flags & CANFD_BRS))
> + can_msg.flags |= IXXAT_USBFD_MSG_FLAGS_FDR;
> + }
> +
> + can_msg.flags |= (can_len2dlc(cf->len) << 16) &
> + IXXAT_USBFD_MSG_FLAGS_DLC;
> +
> + can_msg.flags = cpu_to_le32(can_msg.flags);
> + can_msg.msg_id = cpu_to_le32(can_msg.msg_id);
> +
> + memcpy(can_msg.data, cf->data, cf->len);
> + can_msg.size = (u8)(sizeof(can_msg) - 1 - CANFD_MAX_DLEN + cf->len);
> +
> + memcpy(obuf, &can_msg, can_msg.size + 1);
> +
> + *size = can_msg.size + 1;
> +
> + skb->data_len = *size;
> +
> + return 0;
> +}
> +
> +static int ixx_usbfd_start(struct ixx_usb_device *dev)
> +{
> + int err;
> + u32 time_ref = 0;
> + u8 can_opmode = IXXAT_USBFD_OPMODE_EXTENDED
> + | IXXAT_USBFD_OPMODE_STANDARD;
> + u8 can_exmode = 0;
> +
> + if (dev->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING)
> + can_opmode |= IXXAT_USBFD_OPMODE_ERRFRAME;
> + if (dev->can.ctrlmode & CAN_CTRLMODE_LISTENONLY)
> + can_opmode |= IXXAT_USBFD_OPMODE_LISTONLY;
> +
> + if ((CAN_CTRLMODE_FD | CAN_CTRLMODE_FD_NON_ISO) & dev->can.ctrlmode)
> + can_exmode |= IXXAT_USBFD_EXMODE_EXTDATA |
> + IXXAT_USBFD_EXMODE_FASTDATA;
> +
> + if (!(CAN_CTRLMODE_FD_NON_ISO & dev->can.ctrlmode) && can_exmode)
> + can_exmode |= IXXAT_USBFD_EXMODE_ISOFD;
> +
> + /* Try to reset the controller, in case it is already initalized
> + from a previous unclean shutdown */
> + ixx_usbfd_reset_ctrl(dev);
> +
> + err = ixx_usbfd_init_ctrl(dev, can_opmode,
> + can_exmode,
> + &dev->can.bittiming,
> + &dev->can.data_bittiming);
> + if (err)
> + return err;
> +
> + /* opening first device: */
> + if (dev->ctrl_opened_count == 0) {
> + err = ixx_usbfd_start_ctrl(dev, &time_ref);
> + if (err)
> + return err;
> +
> + ixxat_usb_set_ts_now(dev, time_ref);
> + }
> +
> + dev->ctrl_opened_count++;
> +
> + dev->bec.txerr = 0;
> + dev->bec.rxerr = 0;
> +
> + return err;
> +}
> +
> +/*
> + * stop interface
> + * (last chance before set bus off)
> + */
> +static int ixx_usbfd_stop(struct ixx_usb_device *dev)
> +{
> + int err;
> +
> + if (dev->ctrl_opened_count == 1) {
> + err = ixx_usbfd_stop_ctrl(dev);
> + if (err)
> + return err;
> + }
> +
> + dev->ctrl_opened_count--;
> +
> + return 0;
> +}
> +
> +/*
> + * called when probing to initialize a device object.
> + */
> +static int ixx_usbfd_init(struct ixx_usb_device *dev)
> +{
> + dev->restart_task = kthread_run(&ixx_usbfd_restart_task, dev,
> + "restart_thread");
> + if (!dev->restart_task)
> + return -ENOBUFS;
> +
> + return 0;
> +}
> +
> +static void ixx_usbfd_exit(struct ixx_usb_device *dev)
> +{
> + ixx_usbfd_reset_ctrl(dev);
> +
> + dev->must_quit = 1;
> + dev->restart_flag = 1;
> + wake_up_interruptible(&dev->wait_queue);
> + if (dev->restart_task)
> + kthread_stop(dev->restart_task);
> +}
> +
> +/*
> + * probe function for new IXXAT USB-to-CAN FD interface
> + */
> +static int ixx_usbfd_probe(struct usb_interface *intf)
> +{
> + struct usb_host_interface *if_desc;
> + int i;
> +
> + if_desc = intf->altsetting;
> +
> + /* check interface endpoint addresses */
> + for (i = 0; i < if_desc->desc.bNumEndpoints; i++) {
> + struct usb_endpoint_descriptor *ep = &if_desc->endpoint[i].desc;
> +
> + /*
> + * below is the list of valid ep addreses. Any other ep address
> + * is considered as not-CAN interface address => no dev created
> + */
> + switch (ep->bEndpointAddress) {
> + case IXXAT_USBFD_EP_MSGOUT_0:
> + case IXXAT_USBFD_EP_MSGOUT_1:
> + case IXXAT_USBFD_EP_MSGOUT_2:
> + case IXXAT_USBFD_EP_MSGOUT_3:
> + case IXXAT_USBFD_EP_MSGOUT_4:
> + case IXXAT_USBFD_EP_MSGIN_0:
> + case IXXAT_USBFD_EP_MSGIN_1:
> + case IXXAT_USBFD_EP_MSGIN_2:
> + case IXXAT_USBFD_EP_MSGIN_3:
> + case IXXAT_USBFD_EP_MSGIN_4:
> +
> + break;
> + default:
> + return -ENODEV;
> + }
> + }
> +
> + return 0;
> +}
> +
> +static int ixx_usbfd_get_dev_caps(struct usb_device *dev,
> + struct ixx_dev_caps *dev_caps)
> +{
> + int err = -ENODEV, i;
> + u8 data[IXXAT_USBFD_CMD_BUFFER_SIZE] = { 0 };
> + struct ixx_usbfd_dev_caps_req *dev_caps_req;
> + struct ixx_usbfd_dev_caps_res *dev_caps_res;
> + u32 req_size = sizeof(*dev_caps_req);
> +
> + dev_caps_req = (struct ixx_usbfd_dev_caps_req *) data;
> + dev_caps_res = (struct ixx_usbfd_dev_caps_res *)(data + req_size);
> +
> + dev_caps_req->dal_req.req_size = cpu_to_le32(req_size);
> + dev_caps_req->dal_req.req_code =
> + cpu_to_le32(IXXAT_USBFD_BRD_GET_DEVCAPS_CMD);
> + dev_caps_req->dal_req.req_port = 0xffff;
> + dev_caps_req->dal_req.req_socket = 0xffff;
> +
> + dev_caps_res->dal_res.res_size = cpu_to_le32(
> + sizeof(*dev_caps_res));
> + dev_caps_res->dal_res.ret_size = 0;
> + dev_caps_res->dal_res.ret_code = 0xffffffff;
> +
> + err = ixx_usbfd_send_cmd(dev, &dev_caps_req->dal_req);
> + if (err < 0)
> + return err;
> +
> + err = ixx_usbfd_rcv_cmd(dev, &dev_caps_res->dal_res,
> + 0xffff);
> + if (err < 0)
> + return err;
> +
> + dev_caps->bus_ctrl_count =
> + le16_to_cpu(dev_caps_res->dev_caps.bus_ctrl_count);
> + for (i = 0; i < dev_caps->bus_ctrl_count; ++i)
> + dev_caps->bus_ctrl_types[i] =
> + le16_to_cpu(dev_caps_res->dev_caps.bus_ctrl_types[i]);
> +
> + return 0;
> +}
> +
> +static int ixx_usbfd_get_ctrl_caps(struct usb_device *dev,
> + struct ixx_ctrl_caps *ctrl_caps, int index)
> +{
> + int err = -ENODEV;
> + u8 data[IXXAT_USBFD_CMD_BUFFER_SIZE] = { 0 };
> + struct ixx_usbfd_ctrl_caps_req *ctrl_caps_req;
> + struct ixx_usbfd_ctrl_caps_res *ctrl_caps_res;
> + u32 req_size = sizeof(*ctrl_caps_req);
> +
> + ctrl_caps_req = (struct ixx_usbfd_ctrl_caps_req *) data;
> + ctrl_caps_res = (struct ixx_usbfd_ctrl_caps_res *)(data + req_size);
> +
> + ctrl_caps_req->dal_req.req_size = cpu_to_le32(req_size);
> + ctrl_caps_req->dal_req.req_code =
> + cpu_to_le32(IXXAT_USBFD_CAN_GET_CAPS_CMD);
> + ctrl_caps_req->dal_req.req_port = cpu_to_le16(index);
> + ctrl_caps_req->dal_req.req_socket = 0xffff;
> +
> + ctrl_caps_res->dal_res.res_size =
> + cpu_to_le32(sizeof(*ctrl_caps_res));
> + ctrl_caps_res->dal_res.ret_size = 0;
> + ctrl_caps_res->dal_res.ret_code = 0xffffffff;
> +
> + err = ixx_usbfd_send_cmd(dev, &ctrl_caps_req->dal_req);
> + if (err < 0)
> + return err;
> +
> + err = ixx_usbfd_rcv_cmd(dev,
> + &ctrl_caps_res->dal_res,
> + index);
> + if (err < 0)
> + return err;
> +
> + ctrl_caps->bus_coupling =
> + le16_to_cpu(ctrl_caps_res->ctrl_caps.bus_coupling);
> + ctrl_caps->clock_freq =
> + le32_to_cpu(ctrl_caps_res->ctrl_caps.clock_freq);
> + ctrl_caps->cms_divisor =
> + le32_to_cpu(ctrl_caps_res->ctrl_caps.cms_divisor);
> + ctrl_caps->cms_max_ticks =
> + le32_to_cpu(ctrl_caps_res->ctrl_caps.cms_max_ticks);
> + ctrl_caps->ctrl_type = le16_to_cpu(ctrl_caps_res->ctrl_caps.ctrl_type);
> + ctrl_caps->dtx_divisor =
> + le32_to_cpu(ctrl_caps_res->ctrl_caps.dtx_divisor);
> + ctrl_caps->dtx_max_ticks =
> + le32_to_cpu(ctrl_caps_res->ctrl_caps.dtx_max_ticks);
> + ctrl_caps->features = le32_to_cpu(ctrl_caps_res->ctrl_caps.features);
> + ctrl_caps->tsc_divisor =
> + le32_to_cpu(ctrl_caps_res->ctrl_caps.tsc_divisor);
> +
> + return 0;
> +}
> +
> +static int ixx_usbfd_get_fwinfo(struct ixx_usb_device *dev,
> + struct ixx_intf_fw_info *fwinfo)
> +{
> + int err = -ENODEV;
> + u8 data[IXXAT_USBFD_CMD_BUFFER_SIZE] = { 0 };
> + struct ixx_usbfd_brd_get_fwinfo_req *fw_info_req;
> + struct ixx_usbfd_brd_get_fwinfo_res *fw_info_res;
> + u32 req_size = sizeof(*fw_info_req);
> +
> + fw_info_req = (struct ixx_usbfd_brd_get_fwinfo_req *) data;
> + fw_info_res = (struct ixx_usbfd_brd_get_fwinfo_res *)(data + req_size);
> +
> + fw_info_req->dal_req.req_size = cpu_to_le32(req_size);
> + fw_info_req->dal_req.req_code =
> + cpu_to_le32(IXXAT_USBFD_BRD_GET_FWINFO_CMD);
> + fw_info_req->dal_req.req_port = 0xffff;
> + fw_info_req->dal_req.req_socket = 0xffff;
> +
> + fw_info_res->dal_res.res_size =
> + cpu_to_le32(sizeof(*fw_info_res));
> + fw_info_res->dal_res.ret_size = 0;
> + fw_info_res->dal_res.ret_code = 0xffffffff;
> +
> + err = ixx_usbfd_send_cmd(dev->udev, &fw_info_req->dal_req);
> + if (err < 0)
> + return err;
> +
> + err = ixx_usbfd_rcv_cmd(dev->udev,
> + &fw_info_res->dal_res, 0xffff);
> + if (err < 0)
> + return err;
> +
> + if (fwinfo) {
> + fwinfo->build_version = le16_to_cpu(
> + fw_info_res->fwinfo.build_version);
> + fwinfo->firmware_type = le32_to_cpu(
> + fw_info_res->fwinfo.firmware_type);
> + fwinfo->major_version = le16_to_cpu(
> + fw_info_res->fwinfo.major_version);
> + fwinfo->minor_version = le16_to_cpu(
> + fw_info_res->fwinfo.minor_version);
> + fwinfo->reserved = le16_to_cpu(fw_info_res->fwinfo.reserved);
> + }
> +
> + return le32_to_cpu(fw_info_res->dal_res.ret_code);
> +}
> +
> +static int ixx_usbfd_get_dev_info(struct ixx_usb_device *dev,
> + struct ixx_intf_info *dev_info)
> +{
> + int err = -ENODEV;
> + u8 data[IXXAT_USBFD_CMD_BUFFER_SIZE] = { 0 };
> + struct ixx_usbfd_brd_get_intf_info_req *dev_info_req;
> + struct ixx_usbfd_brd_get_intf_info_res *dev_info_res;
> + u32 req_size = sizeof(*dev_info_req);
> +
> + dev_info_req = (struct ixx_usbfd_brd_get_intf_info_req *) data;
> + dev_info_res =
> + (struct ixx_usbfd_brd_get_intf_info_res *)(data + req_size);
> +
> + dev_info_req->dal_req.req_size = cpu_to_le32(req_size);
> + dev_info_req->dal_req.req_code =
> + cpu_to_le32(IXXAT_USBFD_BRD_GET_DEVINFO_CMD);
> + dev_info_req->dal_req.req_port = 0xffff;
> + dev_info_req->dal_req.req_socket = 0xffff;
> +
> + dev_info_res->dal_res.res_size =
> + cpu_to_le32(sizeof(*dev_info_res));
> + dev_info_res->dal_res.ret_size = 0;
> + dev_info_res->dal_res.ret_code = 0xffffffff;
> +
> + err = ixx_usbfd_send_cmd(dev->udev,
> + &dev_info_req->dal_req);
> + if (err < 0)
> + return err;
> +
> + err = ixx_usbfd_rcv_cmd(dev->udev,
> + &dev_info_res->dal_res,
> + 0xffff);
> + if (err < 0)
> + return err;
> +
> + if (dev_info) {
> + memcpy(dev_info->device_id, &dev_info_res->info.device_id,
> + sizeof(dev_info_res->info.device_id));
> + memcpy(dev_info->device_name, &dev_info_res->info.device_name,
> + sizeof(dev_info_res->info.device_name));
> + dev_info->device_fpga_version = le16_to_cpu(
> + dev_info_res->info.device_fpga_version);
> + dev_info->device_version = le32_to_cpu(
> + dev_info_res->info.device_version);
> + }
> +
> + return le32_to_cpu(dev_info_res->dal_res.ret_code);
> +}
> +
> +/*
> + * describes the USB-to-CAN FD automotive adapter
> + */
> +struct ixx_usb_adapter usb_to_can_fd_automotive = {
> + .name = "USB-to-CAN FD automotive",
> + .device_id = USB_TO_CAN_FD_AUTOMOTIVE_PRODUCT_ID,
> + .clock = {
> + .freq = IFIFD_CRYSTAL_HZ,
> + },
> +
> + .bittiming_const = {
> + .name = "ifi_can",
> + .tseg1_min = 1,
> + .tseg1_max = 256,
> + .tseg2_min = 1,
> + .tseg2_max = 256,
> + .sjw_max = 128,
> + .brp_min = 2,
> + .brp_max = 513,
> + .brp_inc = 1, },
> +
> + .data_bittiming_const = {
> + .name = "ifi_can",
> + .tseg1_min = 1,
> + .tseg1_max = 256,
> + .tseg2_min = 1,
> + .tseg2_max = 256,
> + .sjw_max = 128,
> + .brp_min = 2,
> + .brp_max = 513,
> + .brp_inc = 1, },
> +
> + .ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES |
> + CAN_CTRLMODE_LISTENONLY |
> + CAN_CTRLMODE_LOOPBACK |
> + CAN_CTRLMODE_BERR_REPORTING |
> + CAN_CTRLMODE_FD |
> + CAN_CTRLMODE_FD_NON_ISO,
> +
> + /* size of device private data */
> + .sizeof_dev_private = sizeof(const struct ixx_usb_device),
> +
> + /* give here messages in/out endpoints */
> + .ep_msg_in = { IXXAT_USBFD_EP_MSGIN_0, IXXAT_USBFD_EP_MSGIN_1,
> + IXXAT_USBFD_EP_MSGIN_2, IXXAT_USBFD_EP_MSGIN_3,
> + IXXAT_USBFD_EP_MSGIN_4 },
> + .ep_msg_out = { IXXAT_USBFD_EP_MSGOUT_0, IXXAT_USBFD_EP_MSGOUT_1,
> + IXXAT_USBFD_EP_MSGOUT_2, IXXAT_USBFD_EP_MSGOUT_3,
> + IXXAT_USBFD_EP_MSGOUT_4 },
> +
> + /* size of rx/tx usb buffers */
> + .rx_buffer_size = IXXAT_USBFD_RX_BUFFER_SIZE,
> + .tx_buffer_size = IXXAT_USBFD_TX_BUFFER_SIZE,
> +
> + /* device callbacks */
> + .intf_probe = ixx_usbfd_probe,
> + .dev_get_dev_caps = ixx_usbfd_get_dev_caps,
> + .dev_get_ctrl_caps = ixx_usbfd_get_ctrl_caps,
> + .dev_init = ixx_usbfd_init,
> + .dev_exit = ixx_usbfd_exit,
> + .intf_get_info = ixx_usbfd_get_dev_info,
> + .intf_get_fw_info = ixx_usbfd_get_fwinfo,
> + .dev_decode_buf = ixx_usbfd_decode_buf,
> + .dev_encode_msg = ixx_usbfd_encode_msg,
> + .dev_start = ixx_usbfd_start,
> + .dev_stop = ixx_usbfd_stop,
> + .dev_power = ixx_usbfd_power_ctrl,
> + .has_bgi_ep = 1,
> +};
> +
> +/*
> + * describes the USB-to-CAN FD compact adapter
> + */
> +struct ixx_usb_adapter usb_to_can_fd_compact = {
> + .name = "USB-to-CAN FD compact",
> + .device_id = USB_TO_CAN_FD_COMPACT_PRODUCT_ID,
> + .clock = {
> + .freq = IFIFD_CRYSTAL_HZ,
> + },
> +
> + .bittiming_const = {
> + .name = "ifi_can",
> + .tseg1_min = 1,
> + .tseg1_max = 256,
> + .tseg2_min = 1,
> + .tseg2_max = 256,
> + .sjw_max = 128,
> + .brp_min = 2,
> + .brp_max = 513,
> + .brp_inc = 1, },
> +
> + .data_bittiming_const = {
> + .name = "ifi_can",
> + .tseg1_min = 1,
> + .tseg1_max = 256,
> + .tseg2_min = 1,
> + .tseg2_max = 256,
> + .sjw_max = 128,
> + .brp_min = 2,
> + .brp_max = 513,
> + .brp_inc = 1, },
> +
> + .ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES |
> + CAN_CTRLMODE_LISTENONLY |
> + CAN_CTRLMODE_LOOPBACK |
> + CAN_CTRLMODE_BERR_REPORTING |
> + CAN_CTRLMODE_FD |
> + CAN_CTRLMODE_FD_NON_ISO,
> +
> + /* size of device private data */
> + .sizeof_dev_private = sizeof(const struct ixx_usb_device),
> +
> + /* give here messages in/out endpoints */
> + .ep_msg_in = { IXXAT_USBFD_EP_MSGIN_0, IXXAT_USBFD_EP_MSGIN_1,
> + IXXAT_USBFD_EP_MSGIN_2, IXXAT_USBFD_EP_MSGIN_3,
> + IXXAT_USBFD_EP_MSGIN_4 },
> + .ep_msg_out = { IXXAT_USBFD_EP_MSGOUT_0, IXXAT_USBFD_EP_MSGOUT_1,
> + IXXAT_USBFD_EP_MSGOUT_2, IXXAT_USBFD_EP_MSGOUT_3,
> + IXXAT_USBFD_EP_MSGOUT_4 },
> +
> + /* size of rx/tx usb buffers */
> + .rx_buffer_size = IXXAT_USBFD_RX_BUFFER_SIZE,
> + .tx_buffer_size = IXXAT_USBFD_TX_BUFFER_SIZE,
> +
> + /* device callbacks */
> + .intf_probe = ixx_usbfd_probe,
> + .dev_get_dev_caps = ixx_usbfd_get_dev_caps,
> + .dev_get_ctrl_caps = ixx_usbfd_get_ctrl_caps,
> + .dev_init = ixx_usbfd_init,
> + .dev_exit = ixx_usbfd_exit,
> + .intf_get_info = ixx_usbfd_get_dev_info,
> + .intf_get_fw_info = ixx_usbfd_get_fwinfo,
> + .dev_decode_buf = ixx_usbfd_decode_buf,
> + .dev_encode_msg = ixx_usbfd_encode_msg,
> + .dev_start = ixx_usbfd_start,
> + .dev_stop = ixx_usbfd_stop,
> + .dev_power = ixx_usbfd_power_ctrl,
> + .has_bgi_ep = 1,
> +};
> +
> +/*
> + * describes the DELL Edge GW3002
> + */
> +struct ixx_usb_adapter dell_edge_gw3002 = {
> + .name = "USB DELL Edge GW3002",
> + .device_id = DELL_EDGE_GW3002_PRODUCT_ID,
> + .clock = {
> + .freq = IFIFD_CRYSTAL_HZ,
> + },
> +
> + .bittiming_const = {
> + .name = "mcan",
> + .tseg1_min = 1,
> + .tseg1_max = 64,
> + .tseg2_min = 1,
> + .tseg2_max = 16,
> + .sjw_max = 16,
> + .brp_min = 1,
> + .brp_max = 1024,
> + .brp_inc = 1, },
> +
> + .data_bittiming_const = {
> + .name = "mcan",
> + .tseg1_min = 1,
> + .tseg1_max = 16,
> + .tseg2_min = 1,
> + .tseg2_max = 8,
> + .sjw_max = 4,
> + .brp_min = 1,
> + .brp_max = 32,
> + .brp_inc = 1, },
> +
> + .ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES |
> + CAN_CTRLMODE_LISTENONLY |
> + CAN_CTRLMODE_LOOPBACK |
> + CAN_CTRLMODE_BERR_REPORTING
> +
> + /* currently not supported
> + CAN_CTRLMODE_FD |
> + CAN_CTRLMODE_FD_NON_ISO
> + */,
> +
> + /* size of device private data */
> + .sizeof_dev_private = sizeof(const struct ixx_usb_device),
> +
> + /* give here messages in/out endpoints */
> + .ep_msg_in = { DELL_EDGE_GW3002_EP_MSGIN_0, DELL_EDGE_GW3002_EP_MSGIN_1,
> + DELL_EDGE_GW3002_EP_MSGIN_2, DELL_EDGE_GW3002_EP_MSGIN_3,
> + DELL_EDGE_GW3002_EP_MSGIN_4 },
> + .ep_msg_out = { DELL_EDGE_GW3002_EP_MSGOUT_0, DELL_EDGE_GW3002_EP_MSGOUT_1,
> + DELL_EDGE_GW3002_EP_MSGOUT_2, DELL_EDGE_GW3002_EP_MSGOUT_3,
> + DELL_EDGE_GW3002_EP_MSGOUT_4 },
> +
> + /* size of rx/tx usb buffers */
> + .rx_buffer_size = IXXAT_USBFD_RX_BUFFER_SIZE,
> + .tx_buffer_size = IXXAT_USBFD_TX_BUFFER_SIZE,
> +
> + /* device callbacks */
> + .intf_probe = ixx_usbfd_probe,
> + .dev_get_dev_caps = ixx_usbfd_get_dev_caps,
> + .dev_get_ctrl_caps = ixx_usbfd_get_ctrl_caps,
> + .dev_init = ixx_usbfd_init,
> + .dev_exit = ixx_usbfd_exit,
> + .intf_get_info = ixx_usbfd_get_dev_info,
> + .intf_get_fw_info = ixx_usbfd_get_fwinfo,
> + .dev_decode_buf = ixx_usbfd_decode_buf,
> + .dev_encode_msg = ixx_usbfd_encode_msg,
> + .dev_start = ixx_usbfd_start,
> + .dev_stop = ixx_usbfd_stop,
> + .dev_power = ixx_usbfd_power_ctrl,
> + .has_bgi_ep = 0,
> +};
> +
> +/*
> + * describes the USB-to-CAN FD professional adapter
> + */
> +struct ixx_usb_adapter usb_to_can_fd_professional = {
> + .name = "USB-to-CAN FD professional",
> + .device_id = USB_TO_CAN_FD_PROFESSIONAL_PRODUCT_ID,
> + .clock = {
> + .freq = IFIFD_CRYSTAL_HZ,
> + },
> +
> + .bittiming_const = {
> + .name = "ifi_can",
> + .tseg1_min = 1,
> + .tseg1_max = 256,
> + .tseg2_min = 1,
> + .tseg2_max = 256,
> + .sjw_max = 128,
> + .brp_min = 2,
> + .brp_max = 513,
> + .brp_inc = 1, },
> +
> + .data_bittiming_const = {
> + .name = "ifi_can",
> + .tseg1_min = 1,
> + .tseg1_max = 256,
> + .tseg2_min = 1,
> + .tseg2_max = 256,
> + .sjw_max = 128,
> + .brp_min = 2,
> + .brp_max = 513,
> + .brp_inc = 1, },
> +
> + .ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES |
> + CAN_CTRLMODE_LISTENONLY |
> + CAN_CTRLMODE_LOOPBACK |
> + CAN_CTRLMODE_BERR_REPORTING |
> + CAN_CTRLMODE_FD |
> + CAN_CTRLMODE_FD_NON_ISO,
> +
> + /* size of device private data */
> + .sizeof_dev_private = sizeof(const struct ixx_usb_device),
> +
> + /* give here messages in/out endpoints */
> + .ep_msg_in = { IXXAT_USBFD_EP_MSGIN_0, IXXAT_USBFD_EP_MSGIN_1,
> + IXXAT_USBFD_EP_MSGIN_2, IXXAT_USBFD_EP_MSGIN_3,
> + IXXAT_USBFD_EP_MSGIN_4 },
> + .ep_msg_out = { IXXAT_USBFD_EP_MSGOUT_0, IXXAT_USBFD_EP_MSGOUT_1,
> + IXXAT_USBFD_EP_MSGOUT_2, IXXAT_USBFD_EP_MSGOUT_3,
> + IXXAT_USBFD_EP_MSGOUT_4 },
> +
> + /* size of rx/tx usb buffers */
> + .rx_buffer_size = IXXAT_USBFD_RX_BUFFER_SIZE,
> + .tx_buffer_size = IXXAT_USBFD_TX_BUFFER_SIZE,
> +
> + /* device callbacks */
> + .intf_probe = ixx_usbfd_probe,
> + .dev_get_dev_caps = ixx_usbfd_get_dev_caps,
> + .dev_get_ctrl_caps = ixx_usbfd_get_ctrl_caps,
> + .dev_init = ixx_usbfd_init,
> + .dev_exit = ixx_usbfd_exit,
> + .intf_get_info = ixx_usbfd_get_dev_info,
> + .intf_get_fw_info = ixx_usbfd_get_fwinfo,
> + .dev_decode_buf = ixx_usbfd_decode_buf,
> + .dev_encode_msg = ixx_usbfd_encode_msg,
> + .dev_start = ixx_usbfd_start,
> + .dev_stop = ixx_usbfd_stop,
> + .dev_power = ixx_usbfd_power_ctrl,
> + .has_bgi_ep = 1,
> +};
> +
> +/*
> + * describes the USB-to-CAN FD PCIe mini adapter
> + */
> +struct ixx_usb_adapter usb_to_can_fd_pcie_mini = {
> + .name = "USB-to-CAN FD PCIe mini",
> + .device_id = USB_TO_CAN_FD_PCIE_MINI_PRODUCT_ID,
> + .clock = {
> + .freq = IFIFD_CRYSTAL_HZ,
> + },
> +
> + .bittiming_const = {
> + .name = "ifi_can",
> + .tseg1_min = 1,
> + .tseg1_max = 256,
> + .tseg2_min = 1,
> + .tseg2_max = 256,
> + .sjw_max = 128,
> + .brp_min = 2,
> + .brp_max = 513,
> + .brp_inc = 1, },
> +
> + .data_bittiming_const = {
> + .name = "ifi_can",
> + .tseg1_min = 1,
> + .tseg1_max = 256,
> + .tseg2_min = 1,
> + .tseg2_max = 256,
> + .sjw_max = 128,
> + .brp_min = 2,
> + .brp_max = 513,
> + .brp_inc = 1, },
> +
> + .ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES |
> + CAN_CTRLMODE_LISTENONLY |
> + CAN_CTRLMODE_LOOPBACK |
> + CAN_CTRLMODE_BERR_REPORTING |
> + CAN_CTRLMODE_FD |
> + CAN_CTRLMODE_FD_NON_ISO,
> +
> + /* size of device private data */
> + .sizeof_dev_private = sizeof(const struct ixx_usb_device),
> +
> + /* give here messages in/out endpoints */
> + .ep_msg_in = { IXXAT_USBFD_EP_MSGIN_0, IXXAT_USBFD_EP_MSGIN_1,
> + IXXAT_USBFD_EP_MSGIN_2, IXXAT_USBFD_EP_MSGIN_3,
> + IXXAT_USBFD_EP_MSGIN_4 },
> + .ep_msg_out = { IXXAT_USBFD_EP_MSGOUT_0, IXXAT_USBFD_EP_MSGOUT_1,
> + IXXAT_USBFD_EP_MSGOUT_2, IXXAT_USBFD_EP_MSGOUT_3,
> + IXXAT_USBFD_EP_MSGOUT_4 },
> +
> + /* size of rx/tx usb buffers */
> + .rx_buffer_size = IXXAT_USBFD_RX_BUFFER_SIZE,
> + .tx_buffer_size = IXXAT_USBFD_TX_BUFFER_SIZE,
> +
> + /* device callbacks */
> + .intf_probe = ixx_usbfd_probe,
> + .dev_get_dev_caps = ixx_usbfd_get_dev_caps,
> + .dev_get_ctrl_caps = ixx_usbfd_get_ctrl_caps,
> + .dev_init = ixx_usbfd_init,
> + .dev_exit = ixx_usbfd_exit,
> + .intf_get_info = ixx_usbfd_get_dev_info,
> + .intf_get_fw_info = ixx_usbfd_get_fwinfo,
> + .dev_decode_buf = ixx_usbfd_decode_buf,
> + .dev_encode_msg = ixx_usbfd_encode_msg,
> + .dev_start = ixx_usbfd_start,
> + .dev_stop = ixx_usbfd_stop,
> + .dev_power = ixx_usbfd_power_ctrl,
> + .has_bgi_ep = 1,
> +};
> +
> +/*
> + * describes the USB-to-CAR adapter
> + */
> +struct ixx_usb_adapter usb_to_car = {
> + .name = "USB-to-CAR",
> + .device_id = USB_TO_CAR_ID,
> + .clock = {
> + .freq = IFIFD_CRYSTAL_HZ,
> + },
> +
> + .bittiming_const = {
> + .name = "ifi_can",
> + .tseg1_min = 1,
> + .tseg1_max = 256,
> + .tseg2_min = 1,
> + .tseg2_max = 256,
> + .sjw_max = 128,
> + .brp_min = 2,
> + .brp_max = 513,
> + .brp_inc = 1, },
> +
> + .data_bittiming_const = {
> + .name = "ifi_can",
> + .tseg1_min = 1,
> + .tseg1_max = 256,
> + .tseg2_min = 1,
> + .tseg2_max = 256,
> + .sjw_max = 128,
> + .brp_min = 2,
> + .brp_max = 513,
> + .brp_inc = 1, },
> +
> + .ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES |
> + CAN_CTRLMODE_LISTENONLY |
> + CAN_CTRLMODE_LOOPBACK |
> + CAN_CTRLMODE_BERR_REPORTING |
> + CAN_CTRLMODE_FD |
> + CAN_CTRLMODE_FD_NON_ISO,
> +
> + /* size of device private data */
> + .sizeof_dev_private = sizeof(const struct ixx_usb_device),
> +
> + /* give here messages in/out endpoints */
> + .ep_msg_in = { IXXAT_USBFD_EP_MSGIN_0, IXXAT_USBFD_EP_MSGIN_1,
> + IXXAT_USBFD_EP_MSGIN_2, IXXAT_USBFD_EP_MSGIN_3,
> + IXXAT_USBFD_EP_MSGIN_4 },
> + .ep_msg_out = { IXXAT_USBFD_EP_MSGOUT_0, IXXAT_USBFD_EP_MSGOUT_1,
> + IXXAT_USBFD_EP_MSGOUT_2, IXXAT_USBFD_EP_MSGOUT_3,
> + IXXAT_USBFD_EP_MSGOUT_4 },
> +
> + /* size of rx/tx usb buffers */
> + .rx_buffer_size = IXXAT_USBFD_RX_BUFFER_SIZE,
> + .tx_buffer_size = IXXAT_USBFD_TX_BUFFER_SIZE,
> +
> + /* device callbacks */
> + .intf_probe = ixx_usbfd_probe,
> + .dev_get_dev_caps = ixx_usbfd_get_dev_caps,
> + .dev_get_ctrl_caps = ixx_usbfd_get_ctrl_caps,
> + .dev_init = ixx_usbfd_init,
> + .dev_exit = ixx_usbfd_exit,
> + .intf_get_info = ixx_usbfd_get_dev_info,
> + .intf_get_fw_info = ixx_usbfd_get_fwinfo,
> + .dev_decode_buf = ixx_usbfd_decode_buf,
> + .dev_encode_msg = ixx_usbfd_encode_msg,
> + .dev_start = ixx_usbfd_start,
> + .dev_stop = ixx_usbfd_stop,
> + .dev_power = ixx_usbfd_power_ctrl,
> + .has_bgi_ep = 1,
> +};
> +
> +
> +#endif // CANFD_CAPABLE
> diff --git a/ubuntu/ixxat/ixx_usb_v2.c b/ubuntu/ixxat/ixx_usb_v2.c
> new file mode 100644
> index 000000000000..3fe639c5b817
> --- /dev/null
> +++ b/ubuntu/ixxat/ixx_usb_v2.c
> @@ -0,0 +1,1450 @@
> +/*
> + * CAN driver for IXXAT USB-to-CAN V2
> + *
> + * Copyright (C) 2014 Michael Hengler <mhengler at ixxat.de>
> + *
> + * Based on code originally by pcan_usb_core
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published
> + * by the Free Software Foundation; version 2 of the License.
> + *
> + * This program is distributed in the hope that it will be useful, but
> + * WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + * General Public License for more details.
> + */
> +#include <linux/netdevice.h>
> +#include <linux/usb.h>
> +#include <linux/module.h>
> +#include <linux/delay.h>
> +#include <linux/can.h>
> +#include <linux/can/dev.h>
> +#include <linux/can/error.h>
> +#include <linux/kthread.h>
> +#include <linux/sched.h>
> +#include <linux/wait.h>
> +#include <linux/types.h>
> +#include <linux/gfp.h>
> +#include <asm-generic/errno.h>
> +#include <stdarg.h>
> +
> +#include "ixx_usb_core.h"
> +
> +MODULE_SUPPORTED_DEVICE("IXXAT Automation GmbH USB-to-CAN V2");
> +
> +/* use sja 1000 clock due to internal bittiming calculations */
> +#define SJA1000_CRYSTAL_HZ 8000000
> +
> +/* usb-to-can v2 Endpoints */
> +#define IXXAT_USBV2_EP_CMDOUT 0
> +#define IXXAT_USBV2_EP_CMDIN (IXXAT_USBV2_EP_CMDOUT | USB_DIR_IN)
> +#define IXXAT_USBV2_EP_MSGOUT_0 1
> +#define IXXAT_USBV2_EP_MSGIN_0 (IXXAT_USBV2_EP_MSGOUT_0 | USB_DIR_IN)
> +#define IXXAT_USBV2_EP_MSGOUT_1 2
> +#define IXXAT_USBV2_EP_MSGIN_1 (IXXAT_USBV2_EP_MSGOUT_1 | USB_DIR_IN)
> +#define IXXAT_USBV2_EP_MSGOUT_2 3
> +#define IXXAT_USBV2_EP_MSGIN_2 (IXXAT_USBV2_EP_MSGOUT_2 | USB_DIR_IN)
> +#define IXXAT_USBV2_EP_MSGOUT_3 4
> +#define IXXAT_USBV2_EP_MSGIN_3 (IXXAT_USBV2_EP_MSGOUT_3 | USB_DIR_IN)
> +#define IXXAT_USBV2_EP_MSGOUT_4 5
> +#define IXXAT_USBV2_EP_MSGIN_4 (IXXAT_USBV2_EP_MSGOUT_4 | USB_DIR_IN)
> +
> +/* usb-to-can v2 rx/tx buffers size */
> +#define IXXAT_USBV2_RX_BUFFER_SIZE 512
> +#define IXXAT_USBV2_TX_BUFFER_SIZE 256
> +
> +#define IXXAT_USBV2_CMD_BUFFER_SIZE 256
> +
> +#define IXXAT_USBV2_OPMODE_STANDARD 0x01 /* reception of 11-bit id messages */
> +#define IXXAT_USBV2_OPMODE_EXTENDED 0x02 /* reception of 29-bit id messages */
> +#define IXXAT_USBV2_OPMODE_ERRFRAME 0x04 /* enable reception of error frames */
> +#define IXXAT_USBV2_OPMODE_LISTONLY 0x08 /* listen only mode (TX passive) */
> +
> +/* Stuff error */
> +#define IXXAT_USBV2_CAN_ERROR_STUFF 1
> +/* Form error */
> +#define IXXAT_USBV2_CAN_ERROR_FORM 2
> +/* Acknowledgment error */
> +#define IXXAT_USBV2_CAN_ERROR_ACK 3
> +/* Bit error */
> +#define IXXAT_USBV2_CAN_ERROR_BIT 4
> +/* CRC error */
> +#define IXXAT_USBV2_CAN_ERROR_CRC 6
> +/* Other (unspecified) error */
> +#define IXXAT_USBV2_CAN_ERROR_OTHER 7
> +
> +/* Data overrun occurred */
> +#define IXXAT_USBV2_CAN_STATUS_OVRRUN 0x02
> +/* Error warning limit exceeded */
> +#define IXXAT_USBV2_CAN_STATUS_ERRLIM 0x04
> +/* Bus off status */
> +#define IXXAT_USBV2_CAN_STATUS_BUSOFF 0x08
> +
> +#define IXXAT_USBV2_CAN_DATA 0x00
> +#define IXXAT_USBV2_CAN_INFO 0x01
> +#define IXXAT_USBV2_CAN_ERROR 0x02
> +#define IXXAT_USBV2_CAN_STATUS 0x03
> +#define IXXAT_USBV2_CAN_WAKEUP 0x04
> +#define IXXAT_USBV2_CAN_TIMEOVR 0x05
> +#define IXXAT_USBV2_CAN_TIMERST 0x06
> +
> +#define IXXAT_USBV2_MSG_FLAGS_TYPE 0x000000FF
> +#define IXXAT_USBV2_MSG_FLAGS_SSM 0x00000100
> +#define IXXAT_USBV2_MSG_FLAGS_HPM 0x00000600
> +#define IXXAT_USBV2_MSG_FLAGS_RES 0x0000F800
> +#define IXXAT_USBV2_MSG_FLAGS_DLC 0x000F0000
> +#define IXXAT_USBV2_MSG_FLAGS_OVR 0x00100000
> +#define IXXAT_USBV2_MSG_FLAGS_SRR 0x00200000
> +#define IXXAT_USBV2_MSG_FLAGS_RTR 0x00400000
> +#define IXXAT_USBV2_MSG_FLAGS_EXT 0x00800000
> +#define IXXAT_USBV2_MSG_FLAGS_AFC 0xFF000000
> +
> +#define IXXAT_USBV2_BAL_CMD_CLASS 3
> +#define IXXAT_USBV2_BRD_CMD_CLASS 4
> +#define IXXAT_USBV2_BMG_CMD_CLASS 5
> +
> +#define IXXAT_USBV2_BRD_CMD_CAT 0
> +#define IXXAT_USBV2_CAN_CMD_CAT 1
> +
> +#define IXXAT_USBV2_VCI_CMD_CODE(Class, Function) \
> + ((u32) (((Class) << 8) | (Function)))
> +
> +#define IXXAT_USBV2_BRD_CMD_CODE(Category, Function) \
> + IXXAT_USBV2_VCI_CMD_CODE(IXXAT_USBV2_BRD_CMD_CLASS, \
> + ((Category) << 5) | (Function))
> +
> +#define IXXAT_USBV2_BAL_CMD_CODE(Category, Function) \
> + IXXAT_USBV2_VCI_CMD_CODE(IXXAT_USBV2_BAL_CMD_CLASS, \
> + ((Category) << 5) | (Function))
> +
> +#define IXXAT_USBV2_CAN_GET_CAPS_CMD \
> + IXXAT_USBV2_BAL_CMD_CODE(IXXAT_USBV2_CAN_CMD_CAT, 0)
> +#define IXXAT_USBV2_CAN_INIT_CMD \
> + IXXAT_USBV2_BAL_CMD_CODE(IXXAT_USBV2_CAN_CMD_CAT, 5)
> +#define IXXAT_USBV2_CAN_START_CMD \
> + IXXAT_USBV2_BAL_CMD_CODE(IXXAT_USBV2_CAN_CMD_CAT, 6)
> +#define IXXAT_USBV2_CAN_STOP_CMD \
> + IXXAT_USBV2_BAL_CMD_CODE(IXXAT_USBV2_CAN_CMD_CAT, 7)
> +#define IXXAT_USBV2_CAN_RESET_CMD \
> + IXXAT_USBV2_BAL_CMD_CODE(IXXAT_USBV2_CAN_CMD_CAT, 8)
> +
> +#define IXXAT_USBV2_BRD_GET_FWINFO_CMD \
> + IXXAT_USBV2_BRD_CMD_CODE(IXXAT_USBV2_BRD_CMD_CAT, 0)
> +#define IXXAT_USBV2_BRD_GET_DEVCAPS_CMD \
> + IXXAT_USBV2_BRD_CMD_CODE(IXXAT_USBV2_BRD_CMD_CAT, 1)
> +#define IXXAT_USBV2_BRD_GET_DEVINFO_CMD \
> + IXXAT_USBV2_BRD_CMD_CODE(IXXAT_USBV2_BRD_CMD_CAT, 2)
> +
> +struct ixx_usbv2_dal_req {
> + u32 req_size;
> + u16 req_port;
> + u16 req_socket;
> + u32 req_code;
> +} __packed;
> +
> +struct ixx_usbv2_dal_res {
> + u32 res_size;
> + u32 ret_size;
> + u32 ret_code;
> +} __packed;
> +
> +struct ixx_usbv2_dev_caps_req {
> + struct ixx_usbv2_dal_req dal_req;
> +} __packed;
> +
> +struct ixx_usbv2_dev_caps_res {
> + struct ixx_usbv2_dal_res dal_res;
> + struct ixx_dev_caps dev_caps;
> +} __packed;
> +
> +struct ixx_usbv2_ctrl_caps_req {
> + struct ixx_usbv2_dal_req dal_req;
> +} __packed;
> +
> +struct ixx_usbv2_ctrl_caps_res {
> + struct ixx_usbv2_dal_res dal_res;
> + struct ixx_ctrl_caps ctrl_caps;
> +} __packed;
> +
> +struct ixx_usbv2_ctrl_init_req {
> + struct ixx_usbv2_dal_req dal_req;
> + u8 mode;
> + u8 btr0;
> + u8 btr1;
> + u8 padding;
> +} __packed;
> +
> +struct ixx_usbv2_ctrl_init_res {
> + struct ixx_usbv2_dal_res dal_res;
> +} __packed;
> +
> +struct ixx_usbv2_ctrl_start_req {
> + struct ixx_usbv2_dal_req dal_req;
> +} __packed;
> +
> +struct ixx_usbv2_ctrl_start_res {
> + struct ixx_usbv2_dal_res dal_res;
> + u32 start_time;
> +} __packed;
> +
> +struct ixx_usbv2_ctrl_stop_req {
> + struct ixx_usbv2_dal_req dal_req;
> + u32 action;
> +} __packed;
> +
> +struct ixx_usbv2_ctrl_stop_res {
> + struct ixx_usbv2_dal_res dal_res;
> +} __packed;
> +
> +struct ixx_usbv2_brd_get_fwinfo_req {
> + struct ixx_usbv2_dal_req dal_req;
> +} __packed;
> +
> +struct ixx_usbv2_brd_get_fwinfo_res {
> + struct ixx_usbv2_dal_res dal_res;
> + struct ixx_intf_fw_info fwinfo;
> +} __packed;
> +
> +struct ixx_usbv2_brd_get_intf_info_req {
> + struct ixx_usbv2_dal_req dal_req;
> +} __packed;
> +
> +struct ixx_usbv2_brd_get_intf_info_res {
> + struct ixx_usbv2_dal_res dal_res;
> + struct ixx_intf_info info;
> +} __packed;
> +
> +/*
> + * send usb-to-can v2 command synchronously
> + */
> +static int ixx_usbv2_send_cmd(struct usb_device *dev,
> + struct ixx_usbv2_dal_req *dal_req)
> +{
> + int err, i;
> + u16 size, value;
> + u8 request, requesttype;
> + u8 *buf;
> +
> + request = 0xff;
> + requesttype = USB_TYPE_VENDOR | USB_DIR_OUT;
> + value = le16_to_cpu(dal_req->req_port);
> + size = le32_to_cpu(dal_req->req_size) +
> + sizeof(const struct ixx_usbv2_dal_res);
> +
> + buf = kmalloc(size, GFP_KERNEL);
> + if(!buf)
> + return -ENOMEM;
> + memcpy(buf, (u8 *)dal_req, size);
> +
> +
> + for (i = 0; i < 10; ++i) {
> + err = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), request,
> + requesttype,
> + value,
> + 0,
> + buf,
> + size,
> + msecs_to_jiffies(50));
> +
> + if (err < 0)
> + msleep(20);
> + else
> + break;
> + }
> +
> + kfree(buf);
> +
> + if (err < 0) {
> + dev_err(&dev->dev, "sending command failure: %d\n", err);
> + return err;
> + }
> +
> + return 0;
> +}
> +
> +/*
> + * receive usb-to-can v2 command synchronously
> + */
> +static int ixx_usbv2_rcv_cmd(struct usb_device *dev,
> + struct ixx_usbv2_dal_res *dal_res, int value)
> +{
> + int err, res_size, i, size_to_read;
> + u8 request, requesttype;
> + u8 *buf;
> +
> + request = 0xff;
> + requesttype = USB_TYPE_VENDOR | USB_DIR_IN;
> + res_size = 0;
> + size_to_read = le32_to_cpu(dal_res->res_size);
> +
> + buf = kmalloc(size_to_read, GFP_KERNEL);
> + if(!buf)
> + return -ENOMEM;
> +
> +
> + for (i = 0; i < 10; ++i) {
> + err = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), request,
> + requesttype, value,
> + 0, buf + (u8) res_size,
> + size_to_read - res_size, msecs_to_jiffies(50));
> +
> + if (err < 0) {
> + msleep(20);
> + continue;
> + }
> +
> + res_size += err;
> + if (res_size < size_to_read)
> + msleep(20);
> + else
> + break;
> + }
> +
> + if (res_size != size_to_read)
> + err = -EBADMSG;
> +
> + if (err < 0) {
> + dev_err(&dev->dev, "receiving command failure: %d\n", err);
> + kfree(buf);
> + return err;
> + }
> +
> + memcpy((u8 *)dal_res, buf, size_to_read);
> + kfree(buf);
> +
> + return err;
> +}
> +
> +static int ixx_usbv2_init_ctrl(struct ixx_usb_device *dev, u8 mode, u8 btr0,
> + u8 btr1)
> +{
> + int err = -ENODEV;
> + u8 data[IXXAT_USBV2_CMD_BUFFER_SIZE] = { 0 };
> + struct ixx_usbv2_ctrl_init_req *ctrl_init_req;
> + struct ixx_usbv2_ctrl_init_res *ctrl_init_res;
> + u32 req_size = sizeof(*ctrl_init_req);
> +
> + ctrl_init_req = (struct ixx_usbv2_ctrl_init_req *) data;
> + ctrl_init_res = (struct ixx_usbv2_ctrl_init_res *)(data + req_size);
> +
> + ctrl_init_req->dal_req.req_size = cpu_to_le32(req_size);
> + ctrl_init_req->dal_req.req_code =
> + cpu_to_le32(IXXAT_USBV2_CAN_INIT_CMD);
> + ctrl_init_req->dal_req.req_port = cpu_to_le16(dev->ctrl_idx);
> + ctrl_init_req->dal_req.req_socket = 0xffff;
> + ctrl_init_req->mode = mode;
> + ctrl_init_req->btr0 = btr0;
> + ctrl_init_req->btr1 = btr1;
> +
> + ctrl_init_res->dal_res.res_size = cpu_to_le32(
> + sizeof(*ctrl_init_res));
> + ctrl_init_res->dal_res.ret_size = 0;
> + ctrl_init_res->dal_res.ret_code = 0xffffffff;
> +
> + err = ixx_usbv2_send_cmd(dev->udev, &ctrl_init_req->dal_req);
> + if (err < 0)
> + return err;
> +
> + err = ixx_usbv2_rcv_cmd(dev->udev,
> + &ctrl_init_res->dal_res,
> + dev->ctrl_idx);
> + if (err < 0)
> + return err;
> +
> + return le32_to_cpu(ctrl_init_res->dal_res.ret_code);
> +}
> +
> +static int ixx_usbv2_start_ctrl(struct ixx_usb_device *dev, u32 *time_ref)
> +{
> + int err = -ENODEV;
> + u8 data[IXXAT_USBV2_CMD_BUFFER_SIZE] = { 0 };
> + struct ixx_usbv2_ctrl_start_req *ctrl_start_req;
> + struct ixx_usbv2_ctrl_start_res *ctrl_start_res;
> + u32 req_size = sizeof(*ctrl_start_req);
> +
> + ctrl_start_req = (struct ixx_usbv2_ctrl_start_req *) data;
> + ctrl_start_res = (struct ixx_usbv2_ctrl_start_res *)(data + req_size);
> +
> + ctrl_start_req->dal_req.req_size = cpu_to_le32(req_size);
> + ctrl_start_req->dal_req.req_code =
> + cpu_to_le32(IXXAT_USBV2_CAN_START_CMD);
> + ctrl_start_req->dal_req.req_port = cpu_to_le16(dev->ctrl_idx);
> + ctrl_start_req->dal_req.req_socket = 0xffff;
> +
> + ctrl_start_res->dal_res.res_size = cpu_to_le32(
> + sizeof(*ctrl_start_res));
> + ctrl_start_res->dal_res.ret_size = 0;
> + ctrl_start_res->dal_res.ret_code = 0xffffffff;
> + ctrl_start_res->start_time = 0;
> +
> + err = ixx_usbv2_send_cmd(dev->udev, &ctrl_start_req->dal_req);
> + if (err < 0)
> + return err;
> +
> + err = ixx_usbv2_rcv_cmd(dev->udev,
> + &ctrl_start_res->dal_res,
> + dev->ctrl_idx);
> + if (err < 0)
> + return err;
> +
> + if (time_ref)
> + *time_ref = le32_to_cpu(ctrl_start_res->start_time);
> +
> + return le32_to_cpu(ctrl_start_res->dal_res.ret_code);
> +}
> +
> +static int ixx_usbv2_stop_ctrl(struct ixx_usb_device *dev)
> +{
> + int err = -ENODEV;
> + u8 data[IXXAT_USBV2_CMD_BUFFER_SIZE] = { 0 };
> + struct ixx_usbv2_ctrl_stop_req *ctrl_stop_req;
> + struct ixx_usbv2_ctrl_stop_res *ctrl_stop_res;
> + u32 req_size = sizeof(struct ixx_usbv2_ctrl_stop_req);
> +
> + ctrl_stop_req = (struct ixx_usbv2_ctrl_stop_req *) data;
> + ctrl_stop_res = (struct ixx_usbv2_ctrl_stop_res *)(data + req_size);
> +
> + ctrl_stop_req->dal_req.req_size = cpu_to_le32(req_size);
> + ctrl_stop_req->dal_req.req_code =
> + cpu_to_le32(IXXAT_USBV2_CAN_STOP_CMD);
> + ctrl_stop_req->dal_req.req_port = cpu_to_le16(dev->ctrl_idx);
> + ctrl_stop_req->dal_req.req_socket = 0xffff;
> + ctrl_stop_req->action = cpu_to_le32(0x3);
> +
> + ctrl_stop_res->dal_res.res_size =
> + cpu_to_le32(sizeof(*ctrl_stop_res));
> + ctrl_stop_res->dal_res.ret_size = 0;
> + ctrl_stop_res->dal_res.ret_code = 0xffffffff;
> +
> + err = ixx_usbv2_send_cmd(dev->udev, &ctrl_stop_req->dal_req);
> + if (err < 0)
> + return err;
> +
> + err = ixx_usbv2_rcv_cmd(dev->udev,
> + &ctrl_stop_res->dal_res,
> + dev->ctrl_idx);
> + if (err < 0)
> + return err;
> +
> + if (!le32_to_cpu(ctrl_stop_res->dal_res.ret_code))
> + dev->can.state = CAN_STATE_STOPPED;
> +
> + return le32_to_cpu(ctrl_stop_res->dal_res.ret_code);
> +}
> +
> +static int ixx_usbv2_reset_ctrl(struct ixx_usb_device *dev)
> +{
> + int err = -ENODEV;
> + u8 data[IXXAT_USBV2_CMD_BUFFER_SIZE] = { 0 };
> + struct ixx_usbv2_dal_req *dal_req;
> + struct ixx_usbv2_dal_res *dal_res;
> + u32 req_size = sizeof(*dal_req);
> +
> + dal_req = (struct ixx_usbv2_dal_req *) data;
> + dal_res = (struct ixx_usbv2_dal_res *)(data + req_size);
> +
> + dal_req->req_size = cpu_to_le32(req_size);
> + dal_req->req_code = cpu_to_le32(IXXAT_USBV2_CAN_RESET_CMD);
> + dal_req->req_port = cpu_to_le16(dev->ctrl_idx);
> + dal_req->req_socket = 0xffff;
> +
> + dal_res->res_size = cpu_to_le32(sizeof(*dal_res));
> + dal_res->ret_size = 0;
> + dal_res->ret_code = 0xffffffff;
> +
> + err = ixx_usbv2_send_cmd(dev->udev, dal_req);
> + if (err < 0)
> + return err;
> +
> + err = ixx_usbv2_rcv_cmd(dev->udev, dal_res,
> + dev->ctrl_idx);
> + if (err < 0)
> + return err;
> +
> + return le32_to_cpu(dal_res->ret_code);
> +}
> +
> +static int ixx_usbv2_set_bittiming(struct ixx_usb_device *dev,
> + struct can_bittiming *bt)
> +{
> + u8 btr0 = 0, btr1 = 0, can_opmode = 0;
> +
> + btr0 = ((bt->brp - 1) & 0x3f) | (((bt->sjw - 1) & 0x3) << 6);
> + btr1 = ((bt->prop_seg + bt->phase_seg1 - 1) & 0xf)
> + | (((bt->phase_seg2 - 1) & 0x7) << 4);
> + if (dev->can.ctrlmode & CAN_CTRLMODE_3_SAMPLES)
> + btr1 |= 0x80;
> +
> + can_opmode = IXXAT_USBV2_OPMODE_EXTENDED | IXXAT_USBV2_OPMODE_STANDARD;
> +
> + if (dev->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING)
> + can_opmode |= IXXAT_USBV2_OPMODE_ERRFRAME;
> + if (dev->can.ctrlmode & CAN_CTRLMODE_LISTENONLY)
> + can_opmode |= IXXAT_USBV2_OPMODE_LISTONLY;
> +
> + dev->btr0 = btr0;
> + dev->btr1 = btr1;
> +
> + netdev_dbg(dev->netdev, "setting btr0=0x%08x btr1=0x%08x mode=0x%08x\n",
> + btr0, btr1, can_opmode);
> +
> + return ixx_usbv2_init_ctrl(dev, can_opmode, btr0, btr1);
> +}
> +
> +/*
> + * handle restart but in asynchronously way
> + */
> +static int ixx_usbv2_restart_task(void *user_data)
> +{
> + u32 time_ref;
> + struct ixx_usb_device *dev = user_data;
> +
> + while (!kthread_should_stop()) {
> + if (!dev->must_quit) {
> + wait_event_interruptible(dev->wait_queue,
> + dev->restart_flag);
> + if (!dev->must_quit) {
> + ixx_usbv2_stop_ctrl(dev);
> + ixx_usbv2_start_ctrl(dev, &time_ref);
> + dev->restart_flag = 0;
> + dev->can.state = CAN_STATE_ERROR_ACTIVE;
> + }
> + } else
> + msleep(20);
> + }
> + return 0;
> +}
> +
> +static int ixx_usbv2_handle_canmsg(struct ixx_usb_device *dev,
> + struct ixx_can_msg *rx)
> +{
> + struct net_device *netdev = dev->netdev;
> + struct can_frame *can_frame;
> + struct sk_buff *skb;
> +
> + skb = alloc_can_skb(netdev, &can_frame);
> + if (!skb)
> + return -ENOMEM;
> +
> + if (le32_to_cpu(rx->flags) & IXXAT_USBV2_MSG_FLAGS_OVR) {
> + netdev->stats.rx_over_errors++;
> + netdev->stats.rx_errors++;
> + }
> +
> + can_frame->can_id = le32_to_cpu(rx->msg_id);
> + can_frame->can_dlc =
> + (le32_to_cpu(rx->flags) &
> + IXXAT_USBV2_MSG_FLAGS_DLC) >> 16;
> +
> + if (le32_to_cpu(rx->flags) & IXXAT_USBV2_MSG_FLAGS_EXT)
> + can_frame->can_id |= CAN_EFF_FLAG;
> +
> + if (le32_to_cpu(rx->flags) & IXXAT_USBV2_MSG_FLAGS_RTR)
> + can_frame->can_id |= CAN_RTR_FLAG;
> + else
> + memcpy(can_frame->data, rx->data, can_frame->can_dlc);
> +
> + ixxat_usb_get_ts_tv(dev, le32_to_cpu(rx->time), &skb->tstamp);
> +
> + netif_rx(skb);
> + netdev->stats.rx_packets++;
> + netdev->stats.rx_bytes += can_frame->can_dlc;
> +
> + return 0;
> +}
> +
> +static int ixx_usbv2_handle_error(struct ixx_usb_device *dev,
> + struct ixx_can_msg *rx)
> +{
> + struct net_device *netdev = dev->netdev;
> + struct can_frame *can_frame;
> + struct sk_buff *skb;
> + u8 raw_status = 0;
> +
> + /* nothing should be sent while in BUS_OFF state */
> + if (dev->can.state == CAN_STATE_BUS_OFF)
> + return 0;
> +
> + raw_status = rx->data[0];
> +
> + /* allocate an skb to store the error frame */
> + skb = alloc_can_err_skb(netdev, &can_frame);
> + if (!skb)
> + return -ENOMEM;
> +
> + switch (raw_status) {
> + case IXXAT_USBV2_CAN_ERROR_ACK:
> + can_frame->can_id |= CAN_ERR_ACK;
> + netdev->stats.tx_errors++;
> + break;
> + case IXXAT_USBV2_CAN_ERROR_BIT:
> + can_frame->can_id |= CAN_ERR_PROT;
> + can_frame->data[2] |= CAN_ERR_PROT_BIT;
> + netdev->stats.rx_errors++;
> + break;
> + case IXXAT_USBV2_CAN_ERROR_CRC:
> + can_frame->can_id |= CAN_ERR_PROT;
> + can_frame->data[3] |= CAN_ERR_PROT_LOC_CRC_SEQ;
> + netdev->stats.rx_errors++;
> + break;
> + case IXXAT_USBV2_CAN_ERROR_FORM:
> + can_frame->can_id |= CAN_ERR_PROT;
> + can_frame->data[2] |= CAN_ERR_PROT_FORM;
> + netdev->stats.rx_errors++;
> + break;
> + case IXXAT_USBV2_CAN_ERROR_STUFF:
> + can_frame->can_id |= CAN_ERR_PROT;
> + can_frame->data[2] |= CAN_ERR_PROT_STUFF;
> + netdev->stats.rx_errors++;
> + break;
> + case IXXAT_USBV2_CAN_ERROR_OTHER:
> + can_frame->can_id |= CAN_ERR_PROT;
> + can_frame->data[2] |= CAN_ERR_PROT_UNSPEC;
> + netdev->stats.rx_errors++;
> + break;
> + default:
> + can_frame->can_id |= CAN_ERR_PROT;
> + netdev->stats.rx_errors++;
> + }
> +
> + netif_rx(skb);
> + netdev->stats.rx_packets++;
> + netdev->stats.rx_bytes += can_frame->can_dlc;
> +
> + dev->bec.txerr = le16_to_cpu(rx->data[1]);
> + dev->bec.rxerr = le16_to_cpu(rx->data[3]);
> +
> + return 0;
> +}
> +
> +static int ixx_usbv2_handle_status(struct ixx_usb_device *dev,
> + struct ixx_can_msg *rx)
> +{
> + struct net_device *netdev = dev->netdev;
> + struct can_frame *can_frame;
> + struct sk_buff *skb;
> + u8 raw_status = 0;
> + u32 new_state = 0;
> +
> + raw_status = rx->data[0];
> +
> + /* nothing should be sent while in BUS_OFF state */
> + if (dev->can.state == CAN_STATE_BUS_OFF)
> + return 0;
> +
> + if (!raw_status) {
> + /* no error bit (back to active state) */
> + dev->can.state = CAN_STATE_ERROR_ACTIVE;
> +
> + dev->bec.txerr = 0;
> + dev->bec.rxerr = 0;
> + return 0;
> + }
> +
> + /* allocate an skb to store the error frame */
> + skb = alloc_can_err_skb(netdev, &can_frame);
> + if (!skb)
> + return -ENOMEM;
> +
> + if (raw_status & IXXAT_USBV2_CAN_STATUS_BUSOFF) {
> + can_frame->can_id |= CAN_ERR_BUSOFF;
> + new_state = CAN_STATE_BUS_OFF;
> + dev->can.can_stats.bus_off++;
> + can_bus_off(netdev);
> + } else {
> + if (raw_status & IXXAT_USBV2_CAN_STATUS_ERRLIM) {
> + can_frame->can_id |= CAN_ERR_CRTL;
> + can_frame->data[1] |= CAN_ERR_CRTL_TX_WARNING;
> + can_frame->data[1] |= CAN_ERR_CRTL_RX_WARNING;
> + dev->can.can_stats.error_warning++;
> + new_state = CAN_STATE_ERROR_WARNING;
> + }
> +
> + if (raw_status & IXXAT_USBV2_CAN_STATUS_OVRRUN) {
> + can_frame->can_id |= CAN_ERR_PROT;
> + can_frame->data[2] |= CAN_ERR_PROT_OVERLOAD;
> + netdev->stats.rx_over_errors++;
> + netdev->stats.rx_errors++;
> + }
> +
> + if (!new_state) {
> + new_state = CAN_STATE_ERROR_ACTIVE;
> +
> + dev->bec.txerr = 0;
> + dev->bec.rxerr = 0;
> + }
> + }
> +
> + dev->can.state = new_state;
> +
> + netif_rx(skb);
> + netdev->stats.rx_packets++;
> + netdev->stats.rx_bytes += can_frame->can_dlc;
> +
> + return 0;
> +}
> +
> +/*
> + * callback for bulk IN urb
> + */
> +static int ixx_usbv2_decode_buf(struct ixx_usb_device *dev, struct urb *urb)
> +{
> + struct net_device *netdev = dev->netdev;
> + struct ixx_can_msg *can_msg;
> + u32 msg_end;
> + int err = 0;
> + u32 read_size = 0;
> + u8 msg_type;
> + u8 *data;
> +
> + data = urb->transfer_buffer;
> +
> + /* loop reading all the records from the incoming message */
> + msg_end = urb->actual_length;
> + for (; msg_end > 0;) {
> + can_msg = (struct ixx_can_msg *) &data[read_size];
> +
> + if (!can_msg || !can_msg->size) {
> + netdev_err(netdev, "got unsupported rec in usb msg:\n");
> + err = -ENOTSUPP;
> + break;
> + }
> +
> + /* check if the record goes out of current packet */
> + if ((read_size + can_msg->size + 1) > urb->actual_length) {
> + netdev_err(netdev,
> + "got frag rec: should inc usb rx buf size\n");
> + err = -EBADMSG;
> + break;
> + }
> +
> + msg_type =
> + (le32_to_cpu(can_msg->flags) &
> + IXXAT_USBV2_MSG_FLAGS_TYPE);
> +
> + switch (msg_type) {
> +
> + case IXXAT_USBV2_CAN_DATA:
> + err = ixx_usbv2_handle_canmsg(dev, can_msg);
> + if (err < 0)
> + goto fail;
> + break;
> +
> + case IXXAT_USBV2_CAN_STATUS:
> + err = ixx_usbv2_handle_status(dev, can_msg);
> + if (err < 0)
> + goto fail;
> + break;
> +
> + case IXXAT_USBV2_CAN_ERROR:
> + err = ixx_usbv2_handle_error(dev, can_msg);
> + if (err < 0)
> + goto fail;
> + break;
> +
> + case IXXAT_USBV2_CAN_TIMEOVR:
> + ixxat_usb_get_ts_tv(dev, can_msg->time, NULL);
> + break;
> +
> + case IXXAT_USBV2_CAN_INFO:
> + case IXXAT_USBV2_CAN_WAKEUP:
> + case IXXAT_USBV2_CAN_TIMERST:
> + break;
> +
> + default:
> + netdev_err(netdev,
> + "unhandled rec type 0x%02x (%d): ignored\n",
> + msg_type, msg_type);
> + break;
> + }
> +
> + read_size += can_msg->size + 1;
> + msg_end -= (can_msg->size + 1);
> + }
> +
> +fail:
> + if (err)
> + ixxat_dump_mem("received msg", urb->transfer_buffer,
> + urb->actual_length);
> +
> + return err;
> +}
> +
> +static int ixx_usbv2_encode_msg(struct ixx_usb_device *dev, struct sk_buff *skb,
> + u8 *obuf, size_t *size)
> +{
> + struct can_frame *cf = (struct can_frame *) skb->data;
> + struct ixx_can_msg can_msg = { 0 };
> +
> + if (cf->can_id & CAN_RTR_FLAG)
> + can_msg.flags |= IXXAT_USBV2_MSG_FLAGS_RTR;
> +
> + if (cf->can_id & CAN_EFF_FLAG) {
> + can_msg.flags |= IXXAT_USBV2_MSG_FLAGS_EXT;
> + can_msg.msg_id = cf->can_id & CAN_EFF_MASK;
> + } else {
> + can_msg.msg_id = cf->can_id & CAN_SFF_MASK;
> + }
> +
> + if (dev->can.ctrlmode & CAN_CTRLMODE_ONE_SHOT)
> + can_msg.flags |= IXXAT_USBV2_MSG_FLAGS_SSM;
> +
> + can_msg.flags |= (cf->can_dlc << 16) & IXXAT_USBV2_MSG_FLAGS_DLC;
> +
> + can_msg.flags = cpu_to_le32(can_msg.flags);
> + can_msg.msg_id = cpu_to_le32(can_msg.msg_id);
> +
> + memcpy(can_msg.data, cf->data, cf->can_dlc);
> + can_msg.size = (u8)(sizeof(can_msg) - 1 - CAN_MAX_DLEN + cf->can_dlc);
> +
> + memcpy(obuf, &can_msg, can_msg.size + 1);
> +
> + *size = can_msg.size + 1;
> +
> + skb->data_len = *size;
> +
> + return 0;
> +}
> +
> +static int ixx_usbv2_start(struct ixx_usb_device *dev)
> +{
> + int err;
> + u32 time_ref = 0;
> + u8 can_opmode = IXXAT_USBV2_OPMODE_EXTENDED
> + | IXXAT_USBV2_OPMODE_STANDARD;
> +
> + if (dev->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING)
> + can_opmode |= IXXAT_USBV2_OPMODE_ERRFRAME;
> + if (dev->can.ctrlmode & CAN_CTRLMODE_LISTENONLY)
> + can_opmode |= IXXAT_USBV2_OPMODE_LISTONLY;
> +
> + err = ixx_usbv2_init_ctrl(dev, can_opmode, dev->btr0, dev->btr1);
> + if (err)
> + return err;
> +
> + /* opening first device: */
> + if (dev->ctrl_opened_count == 0) {
> + err = ixx_usbv2_start_ctrl(dev, &time_ref);
> + if (err)
> + return err;
> +
> + ixxat_usb_set_ts_now(dev, time_ref);
> + }
> +
> + dev->ctrl_opened_count++;
> +
> + dev->bec.txerr = 0;
> + dev->bec.rxerr = 0;
> +
> + return err;
> +}
> +
> +/*
> + * stop interface
> + * (last chance before set bus off)
> + */
> +static int ixx_usbv2_stop(struct ixx_usb_device *dev)
> +{
> + int err;
> +
> + if (dev->ctrl_opened_count == 1) {
> + err = ixx_usbv2_stop_ctrl(dev);
> + if (err)
> + return err;
> + }
> +
> + /* turn off ts msgs for that interface if no other dev opened */
> +// if (pdev->usb_if->dev_opened_count == 1)
> +// ixx_usbv2_set_ts(dev, 0);
> + dev->ctrl_opened_count--;
> +
> + return 0;
> +}
> +
> +/*
> + * called when probing to initialize a device object.
> + */
> +static int ixx_usbv2_init(struct ixx_usb_device *dev)
> +{
> + dev->restart_task = kthread_run(&ixx_usbv2_restart_task, dev,
> + "restart_thread");
> + if (!dev->restart_task)
> + return -ENOBUFS;
> +
> + return 0;
> +}
> +
> +static void ixx_usbv2_exit(struct ixx_usb_device *dev)
> +{
> + ixx_usbv2_reset_ctrl(dev);
> +
> + dev->must_quit = 1;
> + dev->restart_flag = 1;
> + wake_up_interruptible(&dev->wait_queue);
> + if (dev->restart_task)
> + kthread_stop(dev->restart_task);
> +}
> +
> +/*
> + * probe function for new IXXAT USB-to-CAN V2 interface
> + */
> +static int ixx_usbv2_probe(struct usb_interface *intf)
> +{
> + struct usb_host_interface *if_desc;
> + int i;
> +
> + if_desc = intf->altsetting;
> +
> + /* check interface endpoint addresses */
> + for (i = 0; i < if_desc->desc.bNumEndpoints; i++) {
> + struct usb_endpoint_descriptor *ep = &if_desc->endpoint[i].desc;
> +
> + /*
> + * below is the list of valid ep addreses. Any other ep address
> + * is considered as not-CAN interface address => no dev created
> + */
> + switch (ep->bEndpointAddress) {
> + case IXXAT_USBV2_EP_MSGOUT_0:
> + case IXXAT_USBV2_EP_MSGOUT_1:
> + case IXXAT_USBV2_EP_MSGOUT_2:
> + case IXXAT_USBV2_EP_MSGOUT_3:
> + case IXXAT_USBV2_EP_MSGOUT_4:
> + case IXXAT_USBV2_EP_MSGIN_0:
> + case IXXAT_USBV2_EP_MSGIN_1:
> + case IXXAT_USBV2_EP_MSGIN_2:
> + case IXXAT_USBV2_EP_MSGIN_3:
> + case IXXAT_USBV2_EP_MSGIN_4:
> +
> + break;
> + default:
> + return -ENODEV;
> + }
> + }
> +
> + return 0;
> +}
> +
> +static int ixx_usbv2_get_dev_caps(struct usb_device *dev,
> + struct ixx_dev_caps *dev_caps)
> +{
> + int err = -ENODEV, i;
> + u8 data[IXXAT_USBV2_CMD_BUFFER_SIZE] = { 0 };
> + struct ixx_usbv2_dev_caps_req *dev_caps_req;
> + struct ixx_usbv2_dev_caps_res *dev_caps_res;
> + u32 req_size = sizeof(*dev_caps_req);
> +
> + dev_caps_req = (struct ixx_usbv2_dev_caps_req *) data;
> + dev_caps_res = (struct ixx_usbv2_dev_caps_res *)(data + req_size);
> +
> + dev_caps_req->dal_req.req_size = cpu_to_le32(req_size);
> + dev_caps_req->dal_req.req_code =
> + cpu_to_le32(IXXAT_USBV2_BRD_GET_DEVCAPS_CMD);
> + dev_caps_req->dal_req.req_port = 0xffff;
> + dev_caps_req->dal_req.req_socket = 0xffff;
> +
> + dev_caps_res->dal_res.res_size =
> + cpu_to_le32(sizeof(*dev_caps_res));
> + dev_caps_res->dal_res.ret_size = 0;
> + dev_caps_res->dal_res.ret_code = 0xffffffff;
> +
> + err = ixx_usbv2_send_cmd(dev, &dev_caps_req->dal_req);
> + if (err < 0)
> + return err;
> +
> + err = ixx_usbv2_rcv_cmd(dev, &dev_caps_res->dal_res,
> + 0xffff);
> + if (err < 0)
> + return err;
> +
> + dev_caps->bus_ctrl_count =
> + le16_to_cpu(dev_caps_res->dev_caps.bus_ctrl_count);
> + for (i = 0; i < dev_caps->bus_ctrl_count; ++i)
> + dev_caps->bus_ctrl_types[i] =
> + le16_to_cpu(dev_caps_res->dev_caps.bus_ctrl_types[i]);
> +
> + return 0;
> +}
> +
> +static int ixx_usbv2_get_ctrl_caps(struct usb_device *dev,
> + struct ixx_ctrl_caps *ctrl_caps, int index)
> +{
> + int err = -ENODEV;
> + u8 data[IXXAT_USBV2_CMD_BUFFER_SIZE] = { 0 };
> + struct ixx_usbv2_ctrl_caps_req *ctrl_caps_req;
> + struct ixx_usbv2_ctrl_caps_res *ctrl_caps_res;
> + u32 req_size = sizeof(*ctrl_caps_req);
> +
> + ctrl_caps_req = (struct ixx_usbv2_ctrl_caps_req *) data;
> + ctrl_caps_res = (struct ixx_usbv2_ctrl_caps_res *)(data + req_size);
> +
> + ctrl_caps_req->dal_req.req_size = cpu_to_le32(req_size);
> + ctrl_caps_req->dal_req.req_code =
> + cpu_to_le32(IXXAT_USBV2_CAN_GET_CAPS_CMD);
> + ctrl_caps_req->dal_req.req_port = cpu_to_le16(index);
> + ctrl_caps_req->dal_req.req_socket = 0xffff;
> +
> + ctrl_caps_res->dal_res.res_size =
> + cpu_to_le32(sizeof(*ctrl_caps_res));
> + ctrl_caps_res->dal_res.ret_size = 0;
> + ctrl_caps_res->dal_res.ret_code = 0xffffffff;
> +
> + err = ixx_usbv2_send_cmd(dev, &ctrl_caps_req->dal_req);
> + if (err < 0)
> + return err;
> +
> + err = ixx_usbv2_rcv_cmd(dev, &ctrl_caps_res->dal_res,
> + index);
> + if (err < 0)
> + return err;
> +
> + ctrl_caps->bus_coupling = le16_to_cpu(
> + ctrl_caps_res->ctrl_caps.bus_coupling);
> + ctrl_caps->clock_freq =
> + le32_to_cpu(ctrl_caps_res->ctrl_caps.clock_freq);
> + ctrl_caps->cms_divisor = le32_to_cpu(
> + ctrl_caps_res->ctrl_caps.cms_divisor);
> + ctrl_caps->cms_max_ticks = le32_to_cpu(
> + ctrl_caps_res->ctrl_caps.cms_max_ticks);
> + ctrl_caps->ctrl_type = le16_to_cpu(ctrl_caps_res->ctrl_caps.ctrl_type);
> + ctrl_caps->dtx_divisor = le32_to_cpu(
> + ctrl_caps_res->ctrl_caps.dtx_divisor);
> + ctrl_caps->dtx_max_ticks = le32_to_cpu(
> + ctrl_caps_res->ctrl_caps.dtx_max_ticks);
> + ctrl_caps->features = le32_to_cpu(ctrl_caps_res->ctrl_caps.features);
> + ctrl_caps->tsc_divisor = le32_to_cpu(
> + ctrl_caps_res->ctrl_caps.tsc_divisor);
> +
> + return 0;
> +}
> +
> +static int ixx_usbv2_get_fwinfo(struct ixx_usb_device *dev,
> + struct ixx_intf_fw_info *fwinfo)
> +{
> + int err = -ENODEV;
> + u8 data[IXXAT_USBV2_CMD_BUFFER_SIZE] = { 0 };
> + struct ixx_usbv2_brd_get_fwinfo_req *fw_info_req;
> + struct ixx_usbv2_brd_get_fwinfo_res *fw_info_res;
> + u32 req_size = sizeof(*fw_info_req);
> +
> + fw_info_req = (struct ixx_usbv2_brd_get_fwinfo_req *) data;
> + fw_info_res = (struct ixx_usbv2_brd_get_fwinfo_res *)(data + req_size);
> +
> + fw_info_req->dal_req.req_size = cpu_to_le32(req_size);
> + fw_info_req->dal_req.req_code =
> + cpu_to_le32(IXXAT_USBV2_BRD_GET_FWINFO_CMD);
> + fw_info_req->dal_req.req_port = 0xffff;
> + fw_info_req->dal_req.req_socket = 0xffff;
> +
> + fw_info_res->dal_res.res_size =
> + cpu_to_le32(sizeof(*fw_info_res));
> + fw_info_res->dal_res.ret_size = 0;
> + fw_info_res->dal_res.ret_code = 0xffffffff;
> +
> + err = ixx_usbv2_send_cmd(dev->udev, &fw_info_req->dal_req);
> + if (err < 0)
> + return err;
> +
> + err = ixx_usbv2_rcv_cmd(dev->udev,
> + &fw_info_res->dal_res, 0xffff);
> + if (err < 0)
> + return err;
> +
> + if (fwinfo) {
> + fwinfo->build_version =
> + le16_to_cpu(fw_info_res->fwinfo.build_version);
> + fwinfo->firmware_type =
> + le32_to_cpu(fw_info_res->fwinfo.firmware_type);
> + fwinfo->major_version =
> + le16_to_cpu(fw_info_res->fwinfo.major_version);
> + fwinfo->minor_version =
> + le16_to_cpu(fw_info_res->fwinfo.minor_version);
> + fwinfo->reserved =
> + le16_to_cpu(fw_info_res->fwinfo.reserved);
> + }
> +
> + return le32_to_cpu(fw_info_res->dal_res.ret_code);
> +}
> +
> +static int ixx_usbv2_get_dev_info(struct ixx_usb_device *dev,
> + struct ixx_intf_info *dev_info)
> +{
> + int err = -ENODEV;
> + u8 data[IXXAT_USBV2_CMD_BUFFER_SIZE] = { 0 };
> + struct ixx_usbv2_brd_get_intf_info_req *dev_info_req;
> + struct ixx_usbv2_brd_get_intf_info_res *dev_info_res;
> + u32 req_size = sizeof(*dev_info_req);
> +
> + dev_info_req = (struct ixx_usbv2_brd_get_intf_info_req *) data;
> + dev_info_res =
> + (struct ixx_usbv2_brd_get_intf_info_res *)(data + req_size);
> +
> + dev_info_req->dal_req.req_size = cpu_to_le32(req_size);
> + dev_info_req->dal_req.req_code =
> + cpu_to_le32(IXXAT_USBV2_BRD_GET_DEVINFO_CMD);
> + dev_info_req->dal_req.req_port = 0xffff;
> + dev_info_req->dal_req.req_socket = 0xffff;
> +
> + dev_info_res->dal_res.res_size =
> + cpu_to_le32(sizeof(*dev_info_res));
> + dev_info_res->dal_res.ret_size = 0;
> + dev_info_res->dal_res.ret_code = 0xffffffff;
> +
> + err = ixx_usbv2_send_cmd(dev->udev, &dev_info_req->dal_req);
> + if (err < 0)
> + return err;
> +
> + err = ixx_usbv2_rcv_cmd(dev->udev,
> + &dev_info_res->dal_res, 0xffff);
> + if (err < 0)
> + return err;
> +
> + if (dev_info) {
> + memcpy(dev_info->device_id, &dev_info_res->info.device_id,
> + sizeof(dev_info_res->info.device_id));
> + memcpy(dev_info->device_name, &dev_info_res->info.device_name,
> + sizeof(dev_info_res->info.device_name));
> + dev_info->device_fpga_version =
> + le16_to_cpu(dev_info_res->info.device_fpga_version);
> + dev_info->device_version =
> + le32_to_cpu(dev_info_res->info.device_version);
> + }
> +
> + return le32_to_cpu(dev_info_res->dal_res.ret_code);
> +}
> +
> +/*
> + * describe the describes the USB-to-CAN V2 compact adapter
> + */
> +struct ixx_usb_adapter usb_to_can_v2_compact = {
> + .name = "USB-to-CAN V2 compact",
> + .device_id = USB_TO_CAN_V2_COMPACT_PRODUCT_ID,
> + .clock = {
> + .freq = SJA1000_CRYSTAL_HZ,
> + },
> + .bittiming_const = {
> + .name = "ixxat_usb",
> + .tseg1_min = 1,
> + .tseg1_max = 16,
> + .tseg2_min = 1,
> + .tseg2_max = 8,
> + .sjw_max = 4,
> + .brp_min = 1,
> + .brp_max = 64,
> + .brp_inc = 1,
> + },
> +
> + .ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES |
> + CAN_CTRLMODE_BERR_REPORTING |
> + CAN_CTRLMODE_LOOPBACK |
> + CAN_CTRLMODE_LISTENONLY,
> +
> + /* size of device private data */
> + .sizeof_dev_private = sizeof(struct ixx_usb_device),
> +
> + /* give here messages in/out endpoints */
> + .ep_msg_in = { IXXAT_USBV2_EP_MSGIN_0, IXXAT_USBV2_EP_MSGIN_1,
> + IXXAT_USBV2_EP_MSGIN_2, IXXAT_USBV2_EP_MSGIN_3,
> + IXXAT_USBV2_EP_MSGIN_4 },
> + .ep_msg_out = { IXXAT_USBV2_EP_MSGOUT_0, IXXAT_USBV2_EP_MSGOUT_1,
> + IXXAT_USBV2_EP_MSGOUT_2, IXXAT_USBV2_EP_MSGOUT_3,
> + IXXAT_USBV2_EP_MSGOUT_4 },
> +
> + /* size of rx/tx usb buffers */
> + .rx_buffer_size = IXXAT_USBV2_RX_BUFFER_SIZE,
> + .tx_buffer_size = IXXAT_USBV2_TX_BUFFER_SIZE,
> +
> + /* device callbacks */
> + .intf_probe = ixx_usbv2_probe,
> + .dev_get_dev_caps = ixx_usbv2_get_dev_caps,
> + .dev_get_ctrl_caps = ixx_usbv2_get_ctrl_caps,
> + .dev_init = ixx_usbv2_init,
> + .dev_exit = ixx_usbv2_exit,
> + .dev_set_bittiming = ixx_usbv2_set_bittiming,
> + .intf_get_info = ixx_usbv2_get_dev_info,
> + .intf_get_fw_info = ixx_usbv2_get_fwinfo,
> + .dev_decode_buf = ixx_usbv2_decode_buf,
> + .dev_encode_msg = ixx_usbv2_encode_msg,
> + .dev_start = ixx_usbv2_start,
> + .dev_stop = ixx_usbv2_stop,
> +};
> +
> +/*
> + * describes the USB-to-CAN V2 automotive adapter
> + */
> +struct ixx_usb_adapter usb_to_can_v2_automotive = {
> + .name = "USB-to-CAN V2 automotive",
> + .device_id = USB_TO_CAN_V2_AUTOMOTIVE_PRODUCT_ID,
> + .clock = {
> + .freq = SJA1000_CRYSTAL_HZ,
> + },
> + .bittiming_const = {
> + .name = "ixxat_usb",
> + .tseg1_min = 1,
> + .tseg1_max = 16,
> + .tseg2_min = 1,
> + .tseg2_max = 8,
> + .sjw_max = 4,
> + .brp_min = 1,
> + .brp_max = 64,
> + .brp_inc = 1,
> + },
> +
> + .ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES |
> + CAN_CTRLMODE_BERR_REPORTING |
> + CAN_CTRLMODE_LOOPBACK |
> + CAN_CTRLMODE_LISTENONLY,
> +
> + /* size of device private data */
> + .sizeof_dev_private = sizeof(struct ixx_usb_device),
> +
> + /* give here messages in/out endpoints */
> + .ep_msg_in = { IXXAT_USBV2_EP_MSGIN_0, IXXAT_USBV2_EP_MSGIN_1,
> + IXXAT_USBV2_EP_MSGIN_2, IXXAT_USBV2_EP_MSGIN_3,
> + IXXAT_USBV2_EP_MSGIN_4 },
> + .ep_msg_out = { IXXAT_USBV2_EP_MSGOUT_0, IXXAT_USBV2_EP_MSGOUT_1,
> + IXXAT_USBV2_EP_MSGOUT_2, IXXAT_USBV2_EP_MSGOUT_3,
> + IXXAT_USBV2_EP_MSGOUT_4 },
> +
> + /* size of rx/tx usb buffers */
> + .rx_buffer_size = IXXAT_USBV2_RX_BUFFER_SIZE,
> + .tx_buffer_size = IXXAT_USBV2_TX_BUFFER_SIZE,
> +
> + /* device callbacks */
> + .intf_probe = ixx_usbv2_probe,
> + .dev_get_dev_caps = ixx_usbv2_get_dev_caps,
> + .dev_get_ctrl_caps = ixx_usbv2_get_ctrl_caps,
> + .dev_init = ixx_usbv2_init,
> + .dev_exit = ixx_usbv2_exit,
> + .dev_set_bittiming = ixx_usbv2_set_bittiming,
> + .intf_get_info = ixx_usbv2_get_dev_info,
> + .intf_get_fw_info = ixx_usbv2_get_fwinfo,
> + .dev_decode_buf = ixx_usbv2_decode_buf,
> + .dev_encode_msg = ixx_usbv2_encode_msg,
> + .dev_start = ixx_usbv2_start,
> + .dev_stop = ixx_usbv2_stop,
> +};
> +
> +/*
> + * describes the USB-to-CAN V2 embedded adapter
> + */
> +struct ixx_usb_adapter usb_to_can_v2_embedded = {
> + .name = "USB-to-CAN V2 embedded",
> + .device_id = USB_TO_CAN_V2_EMBEDDED_PRODUCT_ID,
> + .clock = {
> + .freq = SJA1000_CRYSTAL_HZ,
> + },
> + .bittiming_const = {
> + .name = "ixxat_usb",
> + .tseg1_min = 1,
> + .tseg1_max = 16,
> + .tseg2_min = 1,
> + .tseg2_max = 8,
> + .sjw_max = 4,
> + .brp_min = 1,
> + .brp_max = 64,
> + .brp_inc = 1,
> + },
> +
> + .ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES |
> + CAN_CTRLMODE_BERR_REPORTING |
> + CAN_CTRLMODE_LOOPBACK |
> + CAN_CTRLMODE_LISTENONLY,
> +
> + /* size of device private data */
> + .sizeof_dev_private = sizeof(struct ixx_usb_device),
> +
> + /* give here messages in/out endpoints */
> + .ep_msg_in = { IXXAT_USBV2_EP_MSGIN_0, IXXAT_USBV2_EP_MSGIN_1,
> + IXXAT_USBV2_EP_MSGIN_2, IXXAT_USBV2_EP_MSGIN_3,
> + IXXAT_USBV2_EP_MSGIN_4 },
> + .ep_msg_out = { IXXAT_USBV2_EP_MSGOUT_0, IXXAT_USBV2_EP_MSGOUT_1,
> + IXXAT_USBV2_EP_MSGOUT_2, IXXAT_USBV2_EP_MSGOUT_3,
> + IXXAT_USBV2_EP_MSGOUT_4 },
> +
> + /* size of rx/tx usb buffers */
> + .rx_buffer_size = IXXAT_USBV2_RX_BUFFER_SIZE,
> + .tx_buffer_size = IXXAT_USBV2_TX_BUFFER_SIZE,
> +
> + /* device callbacks */
> + .intf_probe = ixx_usbv2_probe,
> + .dev_get_dev_caps = ixx_usbv2_get_dev_caps,
> + .dev_get_ctrl_caps = ixx_usbv2_get_ctrl_caps,
> + .dev_init = ixx_usbv2_init,
> + .dev_exit = ixx_usbv2_exit,
> + .dev_set_bittiming = ixx_usbv2_set_bittiming,
> + .intf_get_info = ixx_usbv2_get_dev_info,
> + .intf_get_fw_info = ixx_usbv2_get_fwinfo,
> + .dev_decode_buf = ixx_usbv2_decode_buf,
> + .dev_encode_msg = ixx_usbv2_encode_msg,
> + .dev_start = ixx_usbv2_start,
> + .dev_stop = ixx_usbv2_stop,
> +};
> +
> +/*
> + * describes the USB-to-CAN V2 professional adapter
> + */
> +struct ixx_usb_adapter usb_to_can_v2_professional = {
> + .name = "USB-to-CAN V2 professional",
> + .device_id = USB_TO_CAN_V2_PROFESSIONAL_PRODUCT_ID,
> + .clock = {
> + .freq = SJA1000_CRYSTAL_HZ,
> + },
> + .bittiming_const = {
> + .name = "ixxat_usb",
> + .tseg1_min = 1,
> + .tseg1_max = 16,
> + .tseg2_min = 1,
> + .tseg2_max = 8,
> + .sjw_max = 4,
> + .brp_min = 1,
> + .brp_max = 64,
> + .brp_inc = 1,
> + },
> +
> + .ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES |
> + CAN_CTRLMODE_BERR_REPORTING |
> + CAN_CTRLMODE_LOOPBACK |
> + CAN_CTRLMODE_LISTENONLY,
> +
> + /* size of device private data */
> + .sizeof_dev_private = sizeof(struct ixx_usb_device),
> +
> + /* give here messages in/out endpoints */
> + .ep_msg_in = { IXXAT_USBV2_EP_MSGIN_0, IXXAT_USBV2_EP_MSGIN_1,
> + IXXAT_USBV2_EP_MSGIN_2, IXXAT_USBV2_EP_MSGIN_3,
> + IXXAT_USBV2_EP_MSGIN_4 },
> + .ep_msg_out = { IXXAT_USBV2_EP_MSGOUT_0, IXXAT_USBV2_EP_MSGOUT_1,
> + IXXAT_USBV2_EP_MSGOUT_2, IXXAT_USBV2_EP_MSGOUT_3,
> + IXXAT_USBV2_EP_MSGOUT_4 },
> +
> + /* size of rx/tx usb buffers */
> + .rx_buffer_size = IXXAT_USBV2_RX_BUFFER_SIZE,
> + .tx_buffer_size = IXXAT_USBV2_TX_BUFFER_SIZE,
> +
> + /* device callbacks */
> + .intf_probe = ixx_usbv2_probe,
> + .dev_get_dev_caps = ixx_usbv2_get_dev_caps,
> + .dev_get_ctrl_caps = ixx_usbv2_get_ctrl_caps,
> + .dev_init = ixx_usbv2_init,
> + .dev_exit = ixx_usbv2_exit,
> + .dev_set_bittiming = ixx_usbv2_set_bittiming,
> + .intf_get_info = ixx_usbv2_get_dev_info,
> + .intf_get_fw_info = ixx_usbv2_get_fwinfo,
> + .dev_decode_buf = ixx_usbv2_decode_buf,
> + .dev_encode_msg = ixx_usbv2_encode_msg,
> + .dev_start = ixx_usbv2_start,
> + .dev_stop = ixx_usbv2_stop,
> +};
> +
> +/*
> + * describes the USB-to-CAN V2 low speed adapter
> + */
> +struct ixx_usb_adapter usb_to_can_v2_low_speed = {
> + .name = "USB-to-CAN V2 low speed",
> + .device_id = USB_TO_CAN_V2_LOW_SPEED_PRODUCT_ID,
> + .clock = {
> + .freq = SJA1000_CRYSTAL_HZ,
> + },
> + .bittiming_const = {
> + .name = "ixxat_usb",
> + .tseg1_min = 1,
> + .tseg1_max = 16,
> + .tseg2_min = 1,
> + .tseg2_max = 8,
> + .sjw_max = 4,
> + .brp_min = 1,
> + .brp_max = 64,
> + .brp_inc = 1,
> + },
> +
> + .ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES |
> + CAN_CTRLMODE_BERR_REPORTING |
> + CAN_CTRLMODE_LOOPBACK |
> + CAN_CTRLMODE_LISTENONLY,
> +
> + /* size of device private data */
> + .sizeof_dev_private = sizeof(struct ixx_usb_device),
> +
> + /* give here messages in/out endpoints */
> + .ep_msg_in = { IXXAT_USBV2_EP_MSGIN_0, IXXAT_USBV2_EP_MSGIN_1,
> + IXXAT_USBV2_EP_MSGIN_2, IXXAT_USBV2_EP_MSGIN_3,
> + IXXAT_USBV2_EP_MSGIN_4 },
> + .ep_msg_out = { IXXAT_USBV2_EP_MSGOUT_0, IXXAT_USBV2_EP_MSGOUT_1,
> + IXXAT_USBV2_EP_MSGOUT_2, IXXAT_USBV2_EP_MSGOUT_3,
> + IXXAT_USBV2_EP_MSGOUT_4 },
> +
> + /* size of rx/tx usb buffers */
> + .rx_buffer_size = IXXAT_USBV2_RX_BUFFER_SIZE,
> + .tx_buffer_size = IXXAT_USBV2_TX_BUFFER_SIZE,
> +
> + /* device callbacks */
> + .intf_probe = ixx_usbv2_probe,
> + .dev_get_dev_caps = ixx_usbv2_get_dev_caps,
> + .dev_get_ctrl_caps = ixx_usbv2_get_ctrl_caps,
> + .dev_init = ixx_usbv2_init,
> + .dev_exit = ixx_usbv2_exit,
> + .dev_set_bittiming = ixx_usbv2_set_bittiming,
> + .intf_get_info = ixx_usbv2_get_dev_info,
> + .intf_get_fw_info = ixx_usbv2_get_fwinfo,
> + .dev_decode_buf = ixx_usbv2_decode_buf,
> + .dev_encode_msg = ixx_usbv2_encode_msg,
> + .dev_start = ixx_usbv2_start,
> + .dev_stop = ixx_usbv2_stop,
> +};
> +
> +/*
> + * describes the USB-to-CAN V2 extended adapter
> + */
> +struct ixx_usb_adapter usb_to_can_v2_extended = {
> + .name = "USB-to-CAN V2 extended",
> + .device_id = USB_TO_CAN_V2_EXTENDED_PRODUCT_ID,
> + .clock = {
> + .freq = SJA1000_CRYSTAL_HZ,
> + },
> + .bittiming_const = {
> + .name = "ixxat_usb",
> + .tseg1_min = 1,
> + .tseg1_max = 16,
> + .tseg2_min = 1,
> + .tseg2_max = 8,
> + .sjw_max = 4,
> + .brp_min = 1,
> + .brp_max = 64,
> + .brp_inc = 1,
> + },
> +
> + .ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES |
> + CAN_CTRLMODE_BERR_REPORTING |
> + CAN_CTRLMODE_LOOPBACK |
> + CAN_CTRLMODE_LISTENONLY,
> +
> + /* size of device private data */
> + .sizeof_dev_private = sizeof(struct ixx_usb_device),
> +
> + /* give here messages in/out endpoints */
> + .ep_msg_in = { IXXAT_USBV2_EP_MSGIN_0, IXXAT_USBV2_EP_MSGIN_1,
> + IXXAT_USBV2_EP_MSGIN_2, IXXAT_USBV2_EP_MSGIN_3,
> + IXXAT_USBV2_EP_MSGIN_4 },
> + .ep_msg_out = { IXXAT_USBV2_EP_MSGOUT_0, IXXAT_USBV2_EP_MSGOUT_1,
> + IXXAT_USBV2_EP_MSGOUT_2, IXXAT_USBV2_EP_MSGOUT_3,
> + IXXAT_USBV2_EP_MSGOUT_4 },
> +
> + /* size of rx/tx usb buffers */
> + .rx_buffer_size = IXXAT_USBV2_RX_BUFFER_SIZE,
> + .tx_buffer_size = IXXAT_USBV2_TX_BUFFER_SIZE,
> +
> + /* device callbacks */
> + .intf_probe = ixx_usbv2_probe,
> + .dev_get_dev_caps = ixx_usbv2_get_dev_caps,
> + .dev_get_ctrl_caps = ixx_usbv2_get_ctrl_caps,
> + .dev_init = ixx_usbv2_init,
> + .dev_exit = ixx_usbv2_exit,
> + .dev_set_bittiming = ixx_usbv2_set_bittiming,
> + .intf_get_info = ixx_usbv2_get_dev_info,
> + .intf_get_fw_info = ixx_usbv2_get_fwinfo,
> + .dev_decode_buf = ixx_usbv2_decode_buf,
> + .dev_encode_msg = ixx_usbv2_encode_msg,
> + .dev_start = ixx_usbv2_start,
> + .dev_stop = ixx_usbv2_stop,
> +};
>
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